Stash all keybind

After mapping having to go through a whole inventory and stash things can get strenuous, especially after a decent mapping session. Is it possible to make it so you can "lock" items in your inventory then have a set button to auto stash anything that has an affinity or can fit in the stash that you have selected currently? The changes you've made with the move all similar has been amazing and this addition would be most welcome, if its at all possible.