I’ve been using this for a few things, and while it’s a little more unwieldy than Sublime’s it works fine for most of my uses so I’d definitely recommend giving it a go.

multiple-cursors is AMAZING and i use it all the time, but it does NOT work well for more than a few hundred lines of text. It gets incredibly slow.

Perfect - I'll try this out. Thanks for helping me out despite my newby-ness!