Chained variations

actually, this could be the way chained variations + recording will work. if there’s a need to record, let’s say, 8x sequences, user could chain them first, then enter rec mode. I guess, it shouldn’t change the way rec mode works at all (for example, it would still allow recording knob automations, but in «longer distance», like for long filter evolving with no abrupt ends). well, fingers crossed.