It would make modifying sprites a lot easier if you could re-import sprites. Right click - Re-import. AGS would know where the original imported file was and re-import the current version with the same import options with which the sprite was originally imported. Of course, there is is the possibility to replace the sprite but it's not really convenient for longer animations.
For example, a long-ish animation rendered in some 3D software. Once it's imported to the game, you notice that you could improve the lighting a bit. So you render it again. And now you have to replace every single frame of the animation manually. It gets even worse if you're working with live-action material from which you've removed frames after importing it to AGS. You'd have to go through each frame and find the correct updated file.
All of this could be avoided if it was possible to select multiple frames (or a sprite folder) and let AGS do the replacing automatically. It doesn't really matter if you're making a big game or a small game, it would be extremely useful in reducing the time required for these boring tasks that could and should be automatized.
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I'm not sure if this has been suggested before but I think it would be a major improvement for the editor. By the way, great work on AGS 2.8, CJ!
It has indeed been suggested before: Tracker entry (http://www.adventuregamestudio.co.uk/tracker.php?action=detail&id=573)
Good. Didn't notice that when I quickly checked the tracker.
Oh yes please, that would be a very nice feature.