if using the CC (classic or 2D client), UO Assist from
Tugsoft is an approved add-on. It costs a 1-time fee of US$15. With it an inner pack can be an organizer pack, you tag the picks as an item to drop on the pack and then kick off the organizer agent. Bingo ...
However, if you have a Tinker with 51 minimum tinkering skill, ingots and some patience you can craft your own picks or shovels. I recommend shovels ... they weigh less than picks and I believe use less ingots.