This is the kind of thing where you smack your head and say "WTF, How the Hell didn't we see this years ago!!?!?" Great suggestion.
If you solo, yes. but in a group (or raid) even if every member selects "Never" the master looter still has to manually leave it on the corpse
The issue is with the group window. Would need some prequery of group members to see if they have a roll option set. If you are solo never works fine. But before we get into messing with other options I believe Pofire disabling of lev should be enacted as well as making the lava do similar damage to TSS lava. #makepofireg8again
Maybe they could process it once the ask is complete and no one had rolled on the item. At minimum a one press button like the check and X on each item would be nice.
We did. I asked for this before it even went live. I also asked for an option to designate 1 character as a loot dump and send all loot to that player. They said there wasn't a need for those options.
That's actually how I deal with loot when boxing. Assign it all to one toon and don't choose anything for stuff I want left on corpse so I can just spam the X on stuff I don't want looted.
I wouldn't go that far! I love the advloot window, overall, but for raiding, there could be added functionality like "always leave on corpse" or "assign to ML".