How to put more accessories on your sims 3 horses?

I use a lot of accessories on my horses too; I click on the horse, NRaas settings, and set the multiple accessories to true. Then click on the horse again, NRaas, advanced, edit in game. And usually I can add as many accessories (bandages, boots, breastplates and ribbons even) all at the same time.
I dont know of any other way to add multiple accessories together