And yes, we do most of our creation offline, then do any changes or edits (bug fixes, typo corrections, later area changes, etc) offline and do very little of any of it online anymore. We have a development port for that sort of thing, but it's usually easier to just deal with the whole area file at once in a text editor than to address each issue in the online tools.
With regards to the image saving, even a screen shot could work since it could be opened and edited/cropped after it's saved, but getting something to draw the map itself for me would be a big help.
As for how different the resets are, that gets a little complicated. I'm not sure how much Samson's done with AFK's resets, but SmaugFUSS uses a similar reset system (room based rather than area based like stock Smaug), so you're potentially talking about three different reset systems there.