Quentin

I think the developers could remove the backpacks that are already on skins and give it separate from the outfit that you've bought

And for the backpacks of the killers you could be something else that could carry these tokens any examples?

Maybe the add ons could be shown as tokens with the symbol of the perk on it

That's a good point you can make scary backpacks for the killers that don't have to be pretty and coulourfull and for toolbox and flashlights maybe you can only hold one item in your backpack and Noone in your hand so you'll always have to pull out that item that you brought with you.

No only one item can fit in the backpack you'll bring it with you just like before.