DarkRP moding

Okay now i have modded some rp for a while but ive liked to know if
you could make an inventory in darkrp so when u press F4 in the top
you should be able to have an inventory, and when you then press e
on stuff like weapons, food or shipments they shoul pop up in the inventory
where you can press /use /drop and remove like in cider, and stuff

if anyone know how to, or can help a little then plz.