SDonate for Rust

Howdy folks! Could someone please explain me how to get the VIP kits working in rust when bought from SDonate shop? I mean it is connected to my server and my PayPal account. But the thing I don't understand is how do I add the Kits that I have set to sell in my shop so that they could claim it after they have bought it? And what do you choose when you add packages to your store Custom Console commands or give item? I have tried to read documentation provided but it is so confusing that I can't understand anything from it.

Thank you for your time! :)