Rotates the specified entity around its pitch axis in function of the specified movement input and speed property.
This action should usually be placed in an input Event suchs as FingerRelativeMove or GameCtrlStick. If the action is not in an input event it'll assume an input of "1", that is it'll directly apply the specified speed every time the action is updated.
Pitch axis means around its local X axis (the red axis with the gizmo in local mode). That is usually what you'd consider "looking up/down".