I originally made this as a handicap for another mod Loot logic and Reduction but that mod can stand on its own now and this has become its own thing. So here we go. This is an assortment of tweaks to the leveled lists that determine what and how much these stations produce while a settler is assigned to it.

Workshop Scavenge 2x: simply doubles the output.

Workshop Scavenge 2x scrap only: produces raw scrap (wood, steel, screws) with no chance of junk like toasters and teddy bears.

Workshop Scavenge tiered scrap only: Has chances to spawn 1-5 common scrap, 1-3 uncommon or 1 rare scrap (also the chance of none is reduced from 25% to 20%). I personally feel this is the most balanced option.

Workshop Scavenge scrap and plants: This uses the tiered scrap system but I added a leveled list with all of the base game wild plants. So you have about a 10% chance of getting a wild corn, hubflower or similar. I used the logic that you are sending settlers out to collect stuff, so why not pick plants?

Installation:
Choose one file and install with the mod manager of your choice or drop in your data folder.

Notes:
Linked settlements only share scrap, so you need to either break down junk like toasters or bring them to settlements that need resources. By making Salvage stations only output scrap it becomes a huge convenience. Pretend they broke that toaster down for you.

Also note that the game seems to pick from the leveled lists first and then multiply that by the number of workstations active in a settlement. It's not an ideal system, but there's nothing I can do about that.

Compatibility:
Requires base game only.
This just edits a few leveled lists that are only used by the salvage station. This should not interfere with other mods that mess with settlements.