Users of Source Editor are probably familiar with Alt-Shift-S for 'Publish' and Alt-Shift-P for Preview. These are two really useful keyboard shortcuts when editing.
I don't mind that Alt-Shift-S does not work with the Reply Tool, but I wish I had £5 for every time I hit Alt-Shift-P and immediately lost the reply box and couldn't find it again!
Unfortunately, Alt-Shift-P still functions, but not in a good way. I am continuously using it out of years of habit for Previewing using Source Editor, but am immediately taken right to the top of the page I was replying on and offered a Print dialogue box.
The Print dialogue box is easily cancelled, but on a really long talk page it is quite hard to scroll down to re-find the reply box again. Luckily the typed text is not lost, but the shortcut either needs deactivating, or at the very least, stopping it scrolling up to the top of the page.