!I've been looking for this one!
Is the other one that went with it still up anywhere?

I think I misspoke! I'm not dissing reading the weekly updates, I just think if you literally only read the comic only when it updates, then you probably won't have as good an experience. Going back and rereading gives a much better sense of the actual pacing.

I don't think I understand how people can insist that webcomics are slow. Maybe if you're literally only ever reading it once a week I guess. I like to read it all at once, keep up for a little while, and then if a hiatus hits I go back and read it again. Keeps it fresh in my mind.

It doesn't natively have a shortcut, but you can set one in file > modifier keys. I have mine set to change tool temporarily to canvas colour on right click, layer colour on middle click, which are each mapped to the little buttons on my pen.