Filter player pickup quickbar slot

[i-make-robots]

TL;DR

A filter box, like those in filter-inserters, that appears in the bottom right part of the quickbar. When an item appears in the bar it is the only thing the player will pick up. (normally by pressing the F key.)

What?

Grabbing one type of item off tightly packed belts is a pain. to be able to filter select and explain to the game what I'm trying to do would be nice.

Why?

Because my Py run has 6 half-belts in a bus and I only want some lead from the middle half-belt.

[i-make-robots]

aw dang, i just found out about https://mods.factorio.com/mod/vacuum-cleaner