Probably been mentioned before and may well be in the works but i cant over emphasise the usefulness of instead of choosing between a pile of an item, 10, 20 or 30 to Donate / Drop / Eat; Being able to type the exact number!
YES PLEASE! Especially for donating sparkly when you're almost at your daily max favor. You don't want to donate all and waste, but then you end up donating 30 like...a lot of times.
I second this! I had countless times where I wanted to eat/drop/donate a specified amount but the result would be eating/dropping/donating too much than needed.