Convert and record in song mode

I would like to be able to hit a button to convert a sequence in song mode to a copy of that sequence and then be able to just overdub to that new sequence. Like if I just want to add a crash at a bar. This way I wouldn't be adding it to every sequence called "chorus." It would just go to that sequence that I quickly renamed Chorus 2. Make sense?

Yes, do want.

And i also want to be able to make my sequence "sliding" left or right in song mode.

There are workarounds but still, it would be a better ergonomy if you could do that.