Lasal

Ahh cool, i didn't check it out

Does it make also sense to define here which kind of interpolation method is applied to the Property?

It sounds good to me

I would reformulate it like: - Audio Clips - Video Clips - Folder Clips (Image sequences) - Midi Clips (not necesarily a piano roll but all kind of MidiChannel events)...

pretty much the same behaviour using "PushToOverlay" or "MenuFolder"

Ideally it is better with a bang, get the play state and invert it inside the data binding.

I would extend it for the most used widgets, Slider, Integer ,Bang, Press & Toggle.