Spawn items?

So I have my custom item skin working perfectly in editor and just need to fix the issues with crashes ingame but I cannot figure out how to do one thing -

How do I change the items that players spawn with and limit this? I would like only certain players to spawn with the skin in their inventory just like the current cosmetics only spawn if you own TSL or bought the game early etc.

Ideally I could limit it by steamID but I am unsure how to go about doing this at all

If I recall correctly open up PlayerPawnTest, go to components, and look in PrimalInventory1