Inv Button for the AmpCC Parameter in the ENV Breakpoint Control Section

After working around very hard again I have to complain there's no way to make an envelope's breakpoint to move downwards when a controller is being moved upwards. Although negative numbers can be entered into the AmpScale field, the breakpoint still moves up when the contol value is increased - just starting from a lower level. So in order to preserve this behaviour for compatibility claims but also to allow users to truly reverse the controller's influence, please add an Inv button.

 

That will make it a lot simpler