Translate the entity of the specified number of units along the specified axis. The speed of the movement is the length of the Action's time block divided by the Distance specified.
AnimPositionDistance is usually used with FinishAnim checked so as to guarantee a that a certain distance has been traveled once the action finished playing. This enables the addition of another AnimationPositionDistance with the inverse distance to perfectly reverse the effect of the first one. Useful to build precise UI cursors and fixed grid movements in general.