Separate placed from placeable items in placement menu

I think it would be good if placed and placeable (non-placed) items could be separated in the item placement dialog. As it is, it’s difficult to tell how many you actually have available for placing, and it seems that you can accidentally order your settlers to place an item that was already placed, giving you an error message (see video, credit to @Krovikan).


See also my own video at 8:43.


An additional feature that would help out is some specification system on where items listed in the list are; which stockpile(s), for example. A “find” button could then cycle through the tally of that item, with maybe an option to include/exclude placed items or vice versa.