diff --git a/planet/System.ocg/Action.c b/planet/System.ocg/Action.c
index a978616db..97ea4ccd4 100644
--- a/planet/System.ocg/Action.c
+++ b/planet/System.ocg/Action.c
@@ -30,6 +30,7 @@ static const Action =
 	Procedure = DFA_NONE,
 };
 
+// documented in /docs/sdk/script/fn
 global func GameCall(string fn, ...)
 {
 	if (!fn)
diff --git a/planet/System.ocg/Colors.c b/planet/System.ocg/Colors.c
index e81a6523a..9b881d90d 100644
--- a/planet/System.ocg/Colors.c
+++ b/planet/System.ocg/Colors.c
@@ -10,15 +10,19 @@ static const RGBA_RED = 1;
 static const RGBA_GREEN = 2;
 static const RGBA_BLUE = 3;
 
+// documented in /docs/sdk/script/fn
 global func HSL(int h, int s, int l)  { return HSL2RGB(RGB(h, s, l)); }
 global func HSLa(int h, int s, int l, int a) { return  HSL2RGB(RGB(h, s, l)) ^ ~(a & 255) << 24; }
 
+// documented in /docs/sdk/script/fn
 global func RGB(int r, int g, int b) { return (255 << 24) | (r & 255) << 16 | (g & 255) << 8 | (b & 255); }
 global func RGBa (int r, int g, int b, int a) { return (a & 255) << 24 | (r & 255) << 16 | (g & 255) << 8 | (b & 255); }
 
+// documented in /docs/sdk/script/fn
 global func GetRGBaValue(int val, int sel) { return val >> ((3 - sel) * 8) & 255; }
 global func DoRGBaValue(int val, int chng, int sel) { return val + (chng << ((3 - sel) * 8)); }
 
+// documented in /docs/sdk/script/fn
 global func SetRGBaValue(int val, int newval, int sel)
 {
 	// 'delete' old color
@@ -27,6 +31,7 @@ global func SetRGBaValue(int val, int newval, int sel)
 	return val | newval << ((3 - sel) * 8);
 }
 
+// documented in /docs/sdk/script/fn
 global func SplitRGBaValue(int rgb)
 {
 	return {
@@ -37,6 +42,7 @@ global func SplitRGBaValue(int rgb)
 	};
 }
 
+// documented in /docs/sdk/script/fn
 global func HSL2RGB(int hsl)
 {
 	var hue = GetRGBaValue(hsl, 1), sat = GetRGBaValue(hsl, 2), lightness = GetRGBaValue(hsl, 3);
@@ -79,6 +85,7 @@ global func Hue_2_RGB(int var1, int var2, int hue)
 	return var1;
 }
 
+// documented in /docs/sdk/script/fn
 global func RGB2HSL(int rgb)
 {
 	var red = GetRGBaValue(rgb, RGBA_RED), green = GetRGBaValue(rgb, RGBA_GREEN), blue = GetRGBaValue(rgb, RGBA_BLUE);
diff --git a/planet/System.ocg/Components.c b/planet/System.ocg/Components.c
index 90704ceb1..c59d360fd 100644
--- a/planet/System.ocg/Components.c
+++ b/planet/System.ocg/Components.c
@@ -13,6 +13,7 @@
 
 
 // Sets the component of an object or definition.
+// documented in /docs/sdk/script/fn
 global func SetComponent(id component, int count)
 {
 	// Safety: can only be called from object.
@@ -40,6 +41,7 @@ global func SetComponent(id component, int count)
 
 // Returns the amount if the component parameter is specified. If the component parameter is nil
 // it returns the definition of the component for the given index.
+// documented in /docs/sdk/script/fn
 global func GetComponent(id component, int index)
 {
 	// Safety: can only be called from object or definition context.
@@ -97,6 +99,7 @@ global func OnCompletionChange(int old_con, int new_con)
 }
 
 // Splits the calling object into its components.
+// documented in /docs/sdk/script/fn
 global func Split2Components()
 {
 	// Safety: can only be called from object context.
diff --git a/planet/System.ocg/Creation.c b/planet/System.ocg/Creation.c
index 2f9b61e04..b03d4ff81 100644
--- a/planet/System.ocg/Creation.c
+++ b/planet/System.ocg/Creation.c
@@ -7,6 +7,7 @@
 
 // Creates amount objects of type id inside the indicated rectangle(optional) in the indicated material.
 // Returns the number of iterations needed, or -1 when the placement failed.
+// documented in /docs/sdk/script/fn
 global func PlaceObjects(id id, int amount, string mat_str, int x, int y, int wdt, int hgt, bool onsf, bool nostuck)
 {
 	var i, j;
@@ -86,6 +87,7 @@ global func PlaceObjects(id id, int amount, string mat_str, int x, int y, int wd
 	return j;
 }
 
+// documented in /docs/sdk/script/fn
 global func CastObjects(id def, int am, int lev, int x, int y, int angs, int angw)
 {
 	var objects = [];
@@ -111,6 +113,7 @@ global func CastObjects(id def, int am, int lev, int x, int y, int angs, int ang
 	return objects;
 }
 
+// documented in /docs/sdk/script/fn
 global func CastPXS(string mat, int am, int lev, int x, int y, int angs, int angw)
 {
 	if (!angw)
@@ -123,6 +126,7 @@ global func CastPXS(string mat, int am, int lev, int x, int y, int angs, int ang
 	return;
 }
 
+// documented in /docs/sdk/script/fn
 global func DrawParticleLine(string particle, int x0, int y0, int x1, int y1, int prtdist, xdir, ydir, lifetime, proplist properties)
 {
 	// Right parameters?
diff --git a/planet/System.ocg/Definition.c b/planet/System.ocg/Definition.c
index 5e358db75..a5687457e 100644
--- a/planet/System.ocg/Definition.c
+++ b/planet/System.ocg/Definition.c
@@ -9,6 +9,7 @@ static GetDefinition_Loaded_Definition_List;
 
 // Returns the definition or nil if par is a string and the definition exists.
 // See the documentation for the case when par is an integer.
+// documented in /docs/sdk/script/fn
 global func GetDefinition(par)
 {
 	// Overload behavior when par is a string.
@@ -26,4 +27,4 @@ global func GetDefinition(par)
 		return GetDefinition_Loaded_Definition_List[par];
 	}
 	return _inherited(par, ...);
-}
\ No newline at end of file
+}
diff --git a/planet/System.ocg/Explode.c b/planet/System.ocg/Explode.c
index 2c410a8e5..e624c49e5 100644
--- a/planet/System.ocg/Explode.c
+++ b/planet/System.ocg/Explode.c
@@ -111,6 +111,7 @@ global func ExplosionParticles_Init()
 
 /*-- Explosion --*/
 
+// documented in /docs/sdk/script/fn
 global func Explode(int level, bool silent, int damage_level)
 {
 	if(!this) FatalError("Function Explode must be called from object context");
@@ -194,6 +195,7 @@ global func ExplosionEffect(...)
 /*-- Blast objects & shockwaves --*/
 
 // Damage and hurl objects away.
+// documented in /docs/sdk/script/fn
 global func BlastObjects(int x, int y, int level, object container, int cause_plr, int damage_level, object layer, object prev_container)
 {
 	var obj;
@@ -269,6 +271,7 @@ global func BlastObject(int level, int caused_by)
 	return;
 }
 
+// documented in /docs/sdk/script/fn
 global func DoShockwave(int x, int y, int level, int cause_plr, object layer, int off_x, int off_y)
 {
 	// Zero-size shockwave
@@ -370,6 +373,7 @@ strength falls off linearly by distance from 100% to 0% when the player is 700 p
 @param y_off y offset in relative coordinates from the calling object
 @param range range of clonk to explosion at which shaking falls off to 0%
 */
+// documented in /docs/sdk/script/fn
 global func ShakeViewport(int level, int x_off, int y_off, range)
 {
 	if (level <= 0)
diff --git a/planet/System.ocg/FindObject.c b/planet/System.ocg/FindObject.c
index 1c62e0a2f..eb600d4c2 100644
--- a/planet/System.ocg/FindObject.c
+++ b/planet/System.ocg/FindObject.c
@@ -8,11 +8,13 @@
 
 /*-- Find functions --*/
 
+// documented in /docs/sdk/script/fn
 global func Find_Not(cond)
 {
 	return [C4FO_Not, cond];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_And(...)
 {
 	var result = [C4FO_And];
@@ -21,6 +23,7 @@ global func Find_And(...)
 	return result;
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Or(...)
 {
 	var result = [C4FO_Or];
@@ -29,6 +32,7 @@ global func Find_Or(...)
 	return result;
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Exclude(object obj)
 {
 	if (!obj)
@@ -38,16 +42,19 @@ global func Find_Exclude(object obj)
 	return [C4FO_Exclude, obj];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_ID(id def)
 {
 	return [C4FO_ID, def];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_InRect(int x, int y, int wdt, int hgt)
 {
 	return [C4FO_InRect, x, y, wdt, hgt];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_AtPoint(int x, int y)
 {
 	return [C4FO_AtPoint, x, y];
@@ -58,16 +65,19 @@ global func Find_AtRect(int x, int y, int wdt, int hgt)
 	return [C4FO_AtRect, x, y, wdt, hgt];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_OnLine(int x, int y, int x2, int y2)
 {
 	return [C4FO_OnLine, x, y, x2, y2];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Distance(int r, int x, int y)
 {
 	return [C4FO_Distance, x, y, r];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Cone(int r, int cone_angle, int cone_width, int x, int y, int prec_angle)
 {
 	if (!prec_angle)
@@ -75,31 +85,37 @@ global func Find_Cone(int r, int cone_angle, int cone_width, int x, int y, int p
 	return [C4FO_Cone, x, y, r, cone_angle, cone_width, prec_angle];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_OCF(int ocf)
 {
 	return [C4FO_OCF, ocf];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Category(int category)
 {
 	return [C4FO_Category, category];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Action(string action)
 {
 	return [C4FO_Action, action];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_ActionTarget(object target)
 {
 	return [C4FO_ActionTarget, target, 0];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_ActionTarget2(object target)
 {
 	return [C4FO_ActionTarget, target, 1];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_ActionTargets(object target)
 {
 	return [C4FO_Or, Find_ActionTarget(target), Find_ActionTarget2(target)];
@@ -110,21 +126,25 @@ global func Find_Procedure(string procedure)
 	return [C4FO_Procedure, procedure];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Container(object container)
 {
 	return [C4FO_Container, container];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_NoContainer()
 {
 	return [C4FO_Container, nil];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_AnyContainer()
 {
 	return [C4FO_AnyContainer];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Owner(int owner)
 {
 	return [C4FO_Owner, owner];
@@ -135,6 +155,7 @@ global func Find_Controller(int controller)
 	return [C4FO_Controller, controller];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Hostile(int plr)
 {
 	var p = [C4FO_Or];
@@ -154,6 +175,7 @@ global func Find_AnimalHostile(int plr)
 	return Find_Or(Find_Owner(NO_OWNER), Find_Hostile(plr));
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Allied(int plr)
 {
 	var p = [C4FO_Or];
@@ -163,6 +185,7 @@ global func Find_Allied(int plr)
 	return p;
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Team(int team)
 {
 	var p = [C4FO_Or];
@@ -172,26 +195,31 @@ global func Find_Team(int team)
 	return p;
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Func(string f, p1, p2, p3, p4, p5, p6, p7, p8, p9)
 {
 	return [C4FO_Func, f, p1, p2, p3, p4, p5, p6, p7, p8, p9];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Layer(object layer)
 {
 	return [C4FO_Layer, layer];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_InArray(array a)
 {
 	return [C4FO_InArray, a];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_Property(string s)
 {
 	return [C4FO_Property, s];
 }
 
+// documented in /docs/sdk/script/fn
 global func Find_AnyLayer()
 {
 	return [C4FO_AnyLayer];
@@ -211,11 +239,13 @@ global func Find_PathFreeCheck(object to_obj)
 
 /*-- Sort functions --*/
 
+// documented in /docs/sdk/script/fn
 global func Sort_Reverse(array sort)
 {
 	return [C4SO_Reverse, sort];
 }
 
+// documented in /docs/sdk/script/fn
 global func Sort_Multiple(...)
 {
 	var result = [C4SO_Multiple];
@@ -224,31 +254,37 @@ global func Sort_Multiple(...)
 	return result;
 }
 
+// documented in /docs/sdk/script/fn
 global func Sort_Distance(int x, int y)
 {
 	return [C4SO_Distance, x, y];
 }
 
+// documented in /docs/sdk/script/fn
 global func Sort_Random()
 {
 	return [C4SO_Random];
 }
 
+// documented in /docs/sdk/script/fn
 global func Sort_Speed()
 {
 	return [C4SO_Speed];
 }
 
+// documented in /docs/sdk/script/fn
 global func Sort_Mass()
 {
 	return [C4SO_Mass];
 }
 
+// documented in /docs/sdk/script/fn
 global func Sort_Value()
 {
 	return [C4SO_Value];
 }
 
+// documented in /docs/sdk/script/fn
 global func Sort_Func(string f, p1, p2, p3, p4, p5, p6, p7, p8, p9)
 {
 	return [C4SO_Func, f, p1, p2, p3, p4, p5, p6, p7, p8, p9];
diff --git a/planet/System.ocg/Fire.c b/planet/System.ocg/Fire.c
index 524205f35..c19acd866 100644
--- a/planet/System.ocg/Fire.c
+++ b/planet/System.ocg/Fire.c
@@ -16,6 +16,7 @@ static const C4Fx_FireMode_Last      = 3; // largest valid fire mode
 
 
 // Returns whether the object is burning.
+// documented in /docs/sdk/script/fn
 global func OnFire()
 {
 	if (!this)
@@ -27,6 +28,7 @@ global func OnFire()
 }
 
 // Extinguishes the calling object with specified strength.
+// documented in /docs/sdk/script/fn
 global func Extinguish(strength /* strength between 0 and 100 */)
 {
 	if (!this)
@@ -46,6 +48,7 @@ global func Extinguish(strength /* strength between 0 and 100 */)
 }
 
 // Incinerates the calling object with specified strength.
+// documented in /docs/sdk/script/fn
 global func Incinerate(
 	strength /* strength between 0 and 100 */
 	, int caused_by /* the player that caused the incineration */
diff --git a/planet/System.ocg/GUIs.c b/planet/System.ocg/GUIs.c
index 6cadb2329..70f272f94 100644
--- a/planet/System.ocg/GUIs.c
+++ b/planet/System.ocg/GUIs.c
@@ -60,11 +60,13 @@ static const GUI_GridCellLayout = new Global {
 
 /* -- menu functions -- */
 
+// documented in /docs/sdk/script/fn
 global func GuiAction_Call(proplist target, string function, value)
 {
 	return [GUI_Call, target, function, value];
 }
 
+// documented in /docs/sdk/script/fn
 global func GuiAction_SetTag(string tag, int subwindow, object target)
 {
 	return [GUI_SetTag, tag, subwindow, target];
diff --git a/planet/System.ocg/GetXVal.c b/planet/System.ocg/GetXVal.c
index de7d783d1..b791880c6 100644
--- a/planet/System.ocg/GetXVal.c
+++ b/planet/System.ocg/GetXVal.c
@@ -10,6 +10,7 @@
 	@author 
 */
 
+// documented in /docs/sdk/script/fn
 global func GetActMapVal(string entry, string action, id def, int num)
 {
 	if (!def)
diff --git a/planet/System.ocg/Library_Inventory.c b/planet/System.ocg/Library_Inventory.c
index 2b6c5e693..cd9e94428 100644
--- a/planet/System.ocg/Library_Inventory.c
+++ b/planet/System.ocg/Library_Inventory.c
@@ -6,6 +6,7 @@
 */
 
 // overload function for objects with Inventory.ocd
+// documented in /docs/sdk/script/fn
 global func ShiftContents(bool shift_back, id target_id)
 {
 	if (this && (this.HandObjects > 0))
@@ -46,4 +47,4 @@ global func ShiftContents(bool shift_back, id target_id)
 		return false;
 	}
 	return _inherited(shift_back, target_id, ...);
-}
\ No newline at end of file
+}
diff --git a/planet/System.ocg/Material.c b/planet/System.ocg/Material.c
index d247833bd..1c19f54c5 100644
--- a/planet/System.ocg/Material.c
+++ b/planet/System.ocg/Material.c
@@ -56,6 +56,7 @@ global func FindPosInMat(string sMat, int iXStart, int iYStart, int iWidth, int
 	@param y Y coordinate
 	@param distant_first If true, extraction position takes largest horizontal distance from given offset at same height to a maximum value of MaxSlide. Useful to ensure that no floor of 1px of liquid remains.
 	@return The material index of the removed pixel, or -1 if no liquid was found. */
+// documented in /docs/sdk/script/fn
 global func ExtractLiquid(int x, int y, bool distant_first)
 {
 	var result = ExtractLiquidAmount(x, y, 1, distant_first);
@@ -123,4 +124,4 @@ global func DrawMaterialTriangle(string mat_tex, int cx, int cy, int dir, int ed
 		sub
 	);
 	return;
-}
\ No newline at end of file
+}
diff --git a/planet/System.ocg/Math.c b/planet/System.ocg/Math.c
index 601aa7d0c..6021b44d9 100644
--- a/planet/System.ocg/Math.c
+++ b/planet/System.ocg/Math.c
@@ -6,18 +6,21 @@
 */
 
 // Returns the offset to x.
+// documented in /docs/sdk/script/fn
 global func AbsX(int x)
 {
 	return x - GetX();
 }
 
 // Returns the offset to y.
+// documented in /docs/sdk/script/fn
 global func AbsY(int y)
 {
 	return y - GetY();
 }
 
 // Supports negative values, and can deliver random values between two bounds.
+// documented in /docs/sdk/script/fn
 global func RandomX(int start, int end)
 {
 	var swap;
@@ -39,6 +42,7 @@ global func Sign(int x)
 }
 
 // Tangens.
+// documented in /docs/sdk/script/fn
 global func Tan(int angle, int radius, int prec)
 {
 	return radius * Sin(angle, radius * 100, prec) / Cos(angle, radius * 100, prec);
@@ -98,6 +102,7 @@ global func GetTurnDirection(
 	 return dir;
 }
 
+// documented in /docs/sdk/script/fn
 global func SetBit(int old_val, int bit_nr, bool bit)
 {
 	if (GetBit(old_val, bit_nr) != (bit != 0))
@@ -105,11 +110,13 @@ global func SetBit(int old_val, int bit_nr, bool bit)
 	return old_val;
 }
 
+// documented in /docs/sdk/script/fn
 global func GetBit(int value, int bit_nr)
 {
 	return (value & (1 << bit_nr)) != 0;
 }
 
+// documented in /docs/sdk/script/fn
 global func ToggleBit(int old_val, int bit_nr)
 {
 	return old_val ^ (1 << bit_nr);
diff --git a/planet/System.ocg/MeshAnimation.c b/planet/System.ocg/MeshAnimation.c
index b70a20118..129958d3e 100644
--- a/planet/System.ocg/MeshAnimation.c
+++ b/planet/System.ocg/MeshAnimation.c
@@ -5,46 +5,55 @@
 	@author ck
 */
 
+// documented in /docs/sdk/script/fn
 global func Anim_Const(int value)
 {
 	return [C4AVP_Const, value];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_Linear(int position, int begin, int end, int length, int ending)
 {
 	return [C4AVP_Linear, position, begin, end, length, ending];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_X(int position, int begin, int end, int length)
 {
 	return [C4AVP_X, position, begin, end, length];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_Y(int position, int begin, int end, int length)
 {
 	return [C4AVP_Y, position, begin, end, length];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_R(int begin, int end)
 {
 	return [C4AVP_R, begin, end, this];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_AbsX(int position, int begin, int end, int length)
 {
 	return [C4AVP_AbsX, position, begin, end, length];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_AbsY(int position, int begin, int end, int length)
 {
 	return [C4AVP_AbsY, position, begin, end, length];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_Dist(int position, int begin, int end, int length)
 {
 	return [C4AVP_Dist, position, begin, end, length];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_XDir(int begin, int end, int max_xdir, int prec)
 {
 	if (prec == nil)
@@ -52,6 +61,7 @@ global func Anim_XDir(int begin, int end, int max_xdir, int prec)
 	return [C4AVP_XDir, begin, end, max_xdir, prec];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_YDir(int begin, int end, int max_ydir, int prec)
 {
 	if (prec == nil)
@@ -101,6 +111,7 @@ global func Anim_SinV(int begin, int end, int offset, int prec)
 	return [C4AVP_SinV, begin, end, offset, prec];
 }
 
+// documented in /docs/sdk/script/fn
 global func Anim_Action()
 {
 	return [C4AVP_Action];
diff --git a/planet/System.ocg/NamedParams.c b/planet/System.ocg/NamedParams.c
index 27df088d1..0e22b0e40 100644
--- a/planet/System.ocg/NamedParams.c
+++ b/planet/System.ocg/NamedParams.c
@@ -5,6 +5,7 @@
 	@author Marky
 */
 
+// documented in /docs/sdk/script/fn
 global func Sound(string name, opts, ...)
 {
 	if (GetType(opts) == C4V_PropList)
@@ -12,6 +13,7 @@ global func Sound(string name, opts, ...)
 	return inherited(name, opts, ...);
 }
 
+// documented in /docs/sdk/script/fn
 global func SoundAt(string name, int x, int y, opts, ...)
 {
 	if (GetType(opts) == C4V_PropList)
diff --git a/planet/System.ocg/Object.c b/planet/System.ocg/Object.c
index 365b69f19..458212b50 100644
--- a/planet/System.ocg/Object.c
+++ b/planet/System.ocg/Object.c
@@ -6,6 +6,7 @@
 */
 
 // Does not set the speed of an object. But you can set two components of the velocity vector with this function.
+// documented in /docs/sdk/script/fn
 global func SetSpeed(int x_dir, int y_dir, int prec)
 {
 	SetXDir(x_dir, prec);
@@ -65,6 +66,7 @@ global func AddVelocity(int angle, int speed, int precision_angle, int precision
 
 
 // Sets the completion of this to new_con.
+// documented in /docs/sdk/script/fn
 global func SetCon(int new_con, int precision, bool grow_from_center)
 {
 	return DoCon(new_con - GetCon(), precision, grow_from_center);
@@ -351,6 +353,7 @@ global func StonyObjectHit(int x, int y)
 }
 
 // Removes all objects of the given type.
+// documented in /docs/sdk/script/fn
 global func RemoveAll(p, ...)
 {
 	var cnt;
@@ -399,6 +402,7 @@ global func RootSurface(int max_movement)
 }
 
 // Buys an object. Returns the object if it could be bought.
+// documented in /docs/sdk/script/fn
 global func Buy(id buy_def, int for_plr, int pay_plr, object from_vendor, bool show_errors)
 {
 	// if no vendor is given try this
@@ -411,6 +415,7 @@ global func Buy(id buy_def, int for_plr, int pay_plr, object from_vendor, bool s
 }
 
 // Sells an object. Returns true if it could be sold.
+// documented in /docs/sdk/script/fn
 global func Sell(int plr, object obj, object to_vendor)
 {
 	// if no vendor is given try this
diff --git a/planet/System.ocg/Particles.c b/planet/System.ocg/Particles.c
index df9eb5744..ea51ae09d 100644
--- a/planet/System.ocg/Particles.c
+++ b/planet/System.ocg/Particles.c
@@ -18,6 +18,7 @@ global func CreateMuzzleFlash(int x, int y, int angle, int size)
 	CreateParticle("StarFlash", x, y, PV_Random(xdir - size, xdir + size), PV_Random(ydir - size, ydir + size), PV_Random(20, 60), Particles_Glimmer(), size);
 }
 
+// documented in /docs/sdk/script/fn
 global func Smoke(int x, int y, int level, int color, bool heavy)
 {
 	level = level ?? 10;
@@ -151,6 +152,7 @@ global func Particles_Spark()
 	};
 }
 
+// documented in /docs/sdk/script/fn
 global func Particles_Colored(prototype, color, color2)
 {
 	// Colors the given particle. If color2 is given, colors in a random fade between color and color2
diff --git a/planet/System.ocg/Player.c b/planet/System.ocg/Player.c
index 8e3b8408b..ac652f266 100644
--- a/planet/System.ocg/Player.c
+++ b/planet/System.ocg/Player.c
@@ -6,6 +6,7 @@
 */
 
 // Returns the player number of plr_name, or none if there is no such player. (written by timi for CR/CE/CP)
+// documented in /docs/sdk/script/fn
 global func GetPlayerByName(string plr_name)
 {
 	// Loop through all players.
@@ -34,6 +35,7 @@ global func GetTeamByName(string team_name)
 }
 
 // Returns the name of a player, including color markup using the player color.
+// documented in /docs/sdk/script/fn
 global func GetTaggedPlayerName(int plr)
 {
 	var plr_name = GetPlayerName(plr);
@@ -115,6 +117,7 @@ global func GetPlayerByID(int plr_id)
 }
 
 // Adds value to the account of iPlayer.
+// documented in /docs/sdk/script/fn
 global func DoWealth(int plr, int value)
 {
 	return SetWealth(plr, value + GetWealth(plr));
@@ -152,6 +155,7 @@ global func GetDefaultMenuDecoration()
 }
 
 // Find a base of the given player. Use index to search through all bases.
+// documented in /docs/sdk/script/fn
 global func FindBase(int plr, int index)
 {
 	return FindObjects(Find_Owner(plr), Find_Func("IsBase"))[index];
diff --git a/planet/System.ocg/PlayerControl.c b/planet/System.ocg/PlayerControl.c
index 04fd43aca..288a2362c 100644
--- a/planet/System.ocg/PlayerControl.c
+++ b/planet/System.ocg/PlayerControl.c
@@ -13,6 +13,7 @@ static g_player_cursor_pos; // array of [x,y] pos arrays; indexed by player. las
 // Called by engine whenever a control is issued
 // Forwards control to special handler or cursor
 // Return whether handled
+// documented in /docs/sdk/script/fn
 global func PlayerControl(int plr, int ctrl, id spec_id, int x, int y, int strength, bool repeat, int status)
 {
 	var release = status == CONS_Up;
diff --git a/planet/System.ocg/SaveScenario.c b/planet/System.ocg/SaveScenario.c
index 88d19df52..da05e92b8 100644
--- a/planet/System.ocg/SaveScenario.c
+++ b/planet/System.ocg/SaveScenario.c
@@ -330,6 +330,7 @@ global func AddScenarioSaveDependency()
 	if (save_scenario_obj_dependencies && GetIndexOf(save_scenario_obj_dependencies, this)<0) save_scenario_obj_dependencies[GetLength(save_scenario_obj_dependencies)] = this;
 }
 
+// documented in /docs/sdk/script/fn
 global func MakeScenarioSaveName()
 {
 	// Get name to be used to store this object in a scenario
@@ -492,6 +493,7 @@ global func SaveScenarioObject(props)
 	return true;
 }
 
+// documented in /docs/sdk/script/fn
 global func SaveScenarioObjectAction(props)
 {
 	// Helper function to store action properties
diff --git a/planet/System.ocg/Schedule.c b/planet/System.ocg/Schedule.c
index 38e6c990d..8bbc95b7f 100644
--- a/planet/System.ocg/Schedule.c
+++ b/planet/System.ocg/Schedule.c
@@ -6,6 +6,7 @@
 */
 
 // Executes a script repetitively with delay.
+// documented in /docs/sdk/script/fn
 global func Schedule(object obj, string script, int interval, int repeats)
 {
 	// Defaults.
@@ -69,6 +70,7 @@ global func RemoveTimer(call_function /* name or pointer to the timer to remove
 }
 
 // Executes a function repetitively with delay.
+// documented in /docs/sdk/script/fn
 global func ScheduleCall(object obj, call_function, int interval, int repeats, par0, par1, par2, par3, par4)
 {
 	// Defaults.
@@ -97,6 +99,7 @@ global func FxIntScheduleCallTimer(object obj, effect fx)
 	return FX_OK;
 }
 
+// documented in /docs/sdk/script/fn
 global func ClearScheduleCall(object obj, call_function)
 {
 	var i, fx;
diff --git a/planet/System.ocg/Vertices.c b/planet/System.ocg/Vertices.c
index ae85adc1e..69832ef5f 100644
--- a/planet/System.ocg/Vertices.c
+++ b/planet/System.ocg/Vertices.c
@@ -6,6 +6,7 @@
 */
 
 // Sets both the X and Y-coordinate of one vertex.
+// documented in /docs/sdk/script/fn
 global func SetVertexXY(int index, int x, int y)
 {
 	// Set vertices.
@@ -15,6 +16,7 @@ global func SetVertexXY(int index, int x, int y)
 }
 
 // Returns the number of stuck vertices. (of this)
+// documented in /docs/sdk/script/fn
 global func VerticesStuck()
 {
 	var vertices = 0;
@@ -28,6 +30,7 @@ global func VerticesStuck()
 }
 
 // Automatically move an object up to <range> pixels in each direction if it is stuck
+// documented in /docs/sdk/script/fn
 global func Unstick(int range)
 {
 	if (Stuck())