diff --git a/README.md b/README.md
index fed6148..7464f0f 100644
--- a/README.md
+++ b/README.md
@@ -41,8 +41,8 @@ If you're looking for documentation, changelogs, or guides, you can find those o
 	 - An improved input system, similar to Quaver or Etterna, with less delays, less dropped inputs and other improvements.
  - **More information during gameplay**
 	 - While you're playing, we show you information about how you're doing, such as your accuracy, combo break count, notes per second, and your grade/rating.
- - **Better key layouts**
-	 - Instead of being forced to use WASD and the arrow keys, now you can play with DFJK!
+ - **Customizable keybinds**
+	 - Instead of being forced to use WASD and the arrow keys, you can customize the keybinds to any keys you want!
  - **Replays** (in beta)
 	 - Have you ever gotten a crazy score but didn't record? The replay system solves that: it automatically saves a "replay" of your gameplay every time you complete a song, which you can play back inside of the game. 
 	 - Replays just store information about what you're doing, they don't actually record the screen -- so they take up way less space on your disk than videos.
diff --git a/docs/changelogs/index.md b/docs/changelogs/index.md
index 30d502f..4d58d31 100644
--- a/docs/changelogs/index.md
+++ b/docs/changelogs/index.md
@@ -1,4 +1,6 @@
 # Changelogs
 
 - [Latest](latest) (Contains changes that are not in a release yet)
+- [1.5.1](1.5.1)
+- [1.5.0](1.5.0)
 - [1.4.2 and before](changelog-pre)
diff --git a/docs/modchart.md b/docs/modchart.md
index 3dc8309..e1fae25 100644
--- a/docs/modchart.md
+++ b/docs/modchart.md
@@ -109,6 +109,30 @@ for i = 4, 7 do -- go to the center
 end
 ```
 
+Jumping Arrows Example
+```lua
+function stepHit (step)
+    if step == 1 then
+        setActorAccelerationY(100, 4)
+    end
+    if step == 3 then
+        setActorAccelerationY(100, 5)
+    end
+    if step == 5 then
+        setActorAccelerationY(100, 6)
+    end
+    if step == 7 then
+        setActorAccelerationY(100, 7)
+    end
+    for i=4,7 do
+        if getActorY(i) >= 100 then
+        setActorY(100, i)
+        setActorVelocityY(-100, i)
+        end
+    end
+end
+```
+
 
 ### Available Hooks
 
@@ -376,10 +400,34 @@ Returns the angle for the sprite id
 
 Set's the x position for the sprite id
 
+##### setActorAccelerationX(int x, string/int id)
+
+Sets the x acceleration for the sprite id
+
+##### setActorDragX(int x, string/int id)
+
+Sets the x drag for the sprite id
+
+##### setActorVelocityX(int x, string/int id)
+
+Sets the x velocity for the sprite id
+
 ##### setActorY(int y, string/int id)
 
 Set's the y position for the sprite id
 
+##### setActorAccelerationY(int y, string/int id)
+
+Sets the y acceleration for the sprite id
+
+##### setActorDragY(int y, string/int id)
+
+Sets the y drag for the sprite id
+
+##### setActorVelocityY(int y, string/int id)
+
+Sets the y velocity for the sprite id
+
 ##### setActorAlpha(float alpha, string/int id)
 
 Set's the alpha for the sprite id
diff --git a/source/ModchartState.hx b/source/ModchartState.hx
index c5e3ca3..1203ea5 100644
--- a/source/ModchartState.hx
+++ b/source/ModchartState.hx
@@ -564,6 +564,18 @@ class ModchartState
 					getActorByName(id).x = x;
 				});
 				
+				Lua_helper.add_callback(lua,"setActorAccelerationX", function(x:Int,id:String) {
+					getActorByName(id).acceleration.x = x;
+				});
+				
+				Lua_helper.add_callback(lua,"setActorDragX", function(x:Int,id:String) {
+					getActorByName(id).drag.x = x;
+				});
+				
+				Lua_helper.add_callback(lua,"setActorVelocityX", function(x:Int,id:String) {
+					getActorByName(id).velocity.x = x;
+				});
+				
 				Lua_helper.add_callback(lua,"playActorAnimation", function(id:String,anim:String,force:Bool = false,reverse:Bool = false) {
 					getActorByName(id).playAnim(anim, force, reverse);
 				});
@@ -575,7 +587,19 @@ class ModchartState
 				Lua_helper.add_callback(lua,"setActorY", function(y:Int,id:String) {
 					getActorByName(id).y = y;
 				});
-							
+
+				Lua_helper.add_callback(lua,"setActorAccelerationY", function(y:Int,id:String) {
+					getActorByName(id).acceleration.y = y;
+				});
+				
+				Lua_helper.add_callback(lua,"setActorDragY", function(y:Int,id:String) {
+					getActorByName(id).drag.y = y;
+				});
+				
+				Lua_helper.add_callback(lua,"setActorVelocityY", function(y:Int,id:String) {
+					getActorByName(id).velocity.y = y;
+				});
+				
 				Lua_helper.add_callback(lua,"setActorAngle", function(angle:Int,id:String) {
 					getActorByName(id).angle = angle;
 				});