[Asking script] Drop befor pickup

Hello world.

I'm under doing an original strange game.
I'm (game) designer.

I just need a little script. A basic script needed by many game designer.
I try to minimize my requests because i can't pay it.
Code needed : Drop actual item befor pickup up action.
I tried use Axe asset script, but i'm really not a game dev.

That can be best to purpose 3 parts
1- Pickup item (for any asset)
2- Auto drop when pickup new item
3- (already make by Eskil) Drop on key press. (Script name : Drop weapon script)

Thanks, and have nice days.
I love you devs.