right click in a pattern - option - delete all entries below cursor position / delete all entries above cursor position
sub - in pattern / in track
that would save loads of time scrolling though holding delete or highlighting and cutting out portions of cloned tracks in which you need to change parts
I think it would be a good idea to add some of the most useful commands to the right click menu. Ok, mousing around isn’t as effective as key shortcuts, but I can never remember the commands I seldom use. So a drop down menu with commands and assigned keys would be great for learning, and for people that prefer to work with a mouse (hey they might convert with a little help).