in the menu where you set sprite hierarchy, it would be great if you could select, apply changes to, or change the heirchy of multiple sprites at a time by holding shift and clicking.
also, it would be helpful if there were "tiers" or groups of sprites that were in relatively similar places that you could hit a number key and assign the sprite to that group. for instance, if there was a 2d character facing east, the parts of the left arm/left leg could be tier 1, body tier 2, and right limbs tier 3. With a feature like this, you could jump straight to a tier to save scroll time, could apply toggles to levels (visible/invisible/outline) which would greatly improve accuracy when placing sprites that are behind others
finally, to make the editor on the sprite hierarchy screen more useful, it would be helpful if you could press a key and have the expanded palette for that sprite appear on the left, the focus of the leftmost panel.
-Lodger