Bulk Deletion/Selection

Hello. I'd like to see the following feature implemented:
Removing items already listed for sale when searching by keyword and selecting all items

on the page, similar to a buff. Or the ability to select items via the GUI, similar to CS, by holding down the Shift key or left-clicking and dragging to select the desired items, just like in Windows Explorer.

Sometimes Counterbot lists mass-market items below the specified price range, and to eliminate visual clutter when adjusting or setting prices for the items I need, I’d like to first remove the unnecessary ones from the list.