Hitting f9 twice could play from that beat position

[michaelsjackson]

Same for F10, F11, F12.

When you design a certain beat postion of your pattern, this command could be very useful. I set f9..f12 going to those beat positions. And hitting each twice could just play from there.

Example: If playing, hitting f9 twice should start playing from beat 1

4 new commands maybe:
playFromBeat1
playFromBeat2
playFromBeat3
playFromBeat4

Right control + Space could be mapped to playFromBeat1 also, as this is very often used.

Or do we have this command already?