maybe it wouldn't be for all options for each location you're moving from, but it would be very nice for, say, dumping everything from one place into your inventory or storage.  i just spent… i'm guessing five minutes manually clicking the dot for each item in my storage to send them to my inventory, and then the transaction didn't happen anyway because my browser couldn't connect to the site at the minute. 

similarly, it would be nice if there was a little text box or something so one could transfer the same amount of each item selected (moving all of one item if the number entered is higher than the amount you have of said item), possibly with a 'all' feature.

i know this might not work so well with stocking, since one might try to stock more than there's room for.  …come to think of it, there's probably already an error for that, or something.