It also works to place the thing into inventory or quickslot, which leaves it in both my hand and the bag, then edit it with the "normal" binding. (Alt-right-click for me, but I customized it.) Until I let it go from my hand it persists. So, yeah, not impossible to work around, and clearly not a super high priority problem.
Thanks, by the way. I'm getting more addicted to Picker by the day, haha. I installed the last one that I wasn't using, and threw out a few other mods because of it, just recently.