You can now draw a box with the mouse to select a group of segments and edit them exclusively. You can also add or remove segments while holding shift and clicking on them.
I've been wanting this feature for a while and a few people have mentioned it. I've just been putting it off because I knew it was going to be a tedious pain in my butt to implement. I was correct.
But now that it's done I've already found it to be incredibly useful.
Draw a box with the mouse:
This menu pops up when there are more than one segment selected:
It's basically just the Moidfy panel and the segment info panel combined. Any changes made here will only affect the selected segments.
Hope you like it.