Mass Equip Option for Backgrounds

I would like to suggest a mass equip option for backgrounds. Personally, I find it tedious to go to inventory and have to click on each background to add to a horse, then back to inventory, back to the background, equip to a horse, etc... 

I was thinking the easiest way to implement a feature like this would be to set it up similarly to how the treat assignment can be done. That way you can click on multiple horses for backgrounds(number of backgrounds could show behind the name of it so you know if you have enough). 

Anyway, just me thinking and then suggesting. ;)

...I just bought 50 Winner's Circles from Feather and had to equip every. last. one. Not fun at all, but it's over with now :1 I needed this button xD maybe have it in the Tack room or something, idk. I like your treat style system idea :)