Are there tutorials for pvp?

hi, i'm a student programmer and still has a lot to learn,

i'm wondering if somebody could help me create a game with pvp and trade system? currently, i am using an asset on unity store that supports multiplayer. The Atavism asset. The only thing is, some of their files are protected and hidden for other users.

on the asset, PVP and Trading is soon to be implemented yet, so i have to improvise coz i need the pvp and trade badly..

can somebody direct me to some tutorials or helpful links that would help me set up a simple pvp and trade system?

THNX in advance! and good day!