What I'd like to see is a separate delete window where you can 'check' items and delete them all at one go. Also a delete all of each rarity type, where an "Are You Sure?" dialog box pops up where you can uncheck items you don't want to liquidate.

Also crafting essences need to be stacked... (999) Unicorn Sugar, rather than
Unicorn Sugar
Unicorn Sugar
... Etc.