Another Very Very small tweak from me again. I hope I am not alone thinking that the Passive Provider Chest is completely shadowed by the filtered storage chest with basic inserter logic. I find almost no utility for it anywhere. PLEASE LET ME KNOW IF I AM MISSING SOMETHING HERE hahahahahaha!
Anyway the mod is very basic and give the Passive Provider chest the a unique change compared to the other logistic chests by allowing the player to filter slots, like you can do in trains and player inventories. I actually have no idea if this gives it any more utility but i will endeavour to find a use for this. I'm thinking it can be used now in spaghetti malls maybe? Not sure, let me know :)
Available for 2.1 also.