When I'm editing in piano roll on a long section, even if I'm looping the section I'm working on, stopping playback takes me aaaaaaaallllllll the way back to the beginning of the piano roll and I have to scroll it back to the section I'm editing. Is there a way to "pin" the piano roll or a setting that will stop this so that it doesn't automatically scroll back to the beginning of the track when I stop playback to make an edit? It's not the end of the world, but gets pretty annoying when I'm trying to make several small edits in a short period of time to clean up a line.
I wish I could help! I have been looking for a split and merge operation on tracks, which would be very useful. There was a small sign that one of the testing versions might have had such operations available around 2017, but I can't find those operations in my latest lmms copies.
I can't see why such operations aren't available, or that they would be too difficult to implement. It would be good to split segments in the Song Editor - not only in the Piano Roll - as this would make things much more manageable.
If there were such operations, then it would presumably be possible to copy a segment to a spare track, then split it around the point where the edits are required. It wouldn't necessarily be necessary to join the segments after doing the edit, though some might prefer to do that.
Otherwise, I agree, that this is annoying. I use F7 to switch to the Piano Roll, and as you say, on a long segment, it always goes back to the start. Things like this are a sad pain in LMMS - and at times I don't know why I bother - but I'd like to see things improve, though if things don't in a moderate time I might give up and retreat to Logic and/or Reaper. It'd be great to get some of the seemingly trivial things sorted, and this would make LMMS much better.