I.m with you in as much as most of my issues with Sonar continue to be about Lanes...
This is one of a multitude of problems that arise for me...
Right now I'm hoping someone will chime in with the elusive command to hide all lanes as I battled with it yesterday when they (magically?) opened for all tracks...
My bigger issue with them are the zoom limitations.
I have constant need to edit clips in the lane view... Trying to set clip gain envelopes is a royal pain being too short to have good vertical adjustment resolution ...and of course, they don't get small enough to show many on screen simultaneously...
I spend more time readjusting views than I do any actual work due to Lane limitations...