Button press and hold
Press and hold capability for buttons with the ability to specify the length of the hold.
Also would be good to allow multiple press and holds of different lengths on the same button that go to independent destinations. Example press and hold button for 2 seconds goes to artboard a. Press and hold same button for 4 seconds goes to artboard b.
Could work a little bit like the drag button: if you press and hold long enough it goes to next artboard with the animation going on, but if you release too soon. the animation go back the other way. Same as if you drag an element but drag back to its orignal position.