I was trying to load and unload copper wire but it doesnt work (sorry for my bad english)

Did you change the setting to allow all items?

How I do that?

From in game:
Esc -> Settings -> Mod settings -> Map -> Allowed items

:O i Will try it later thanks a lot!!!

Thanks! it worked!

Is that working with all mods items ? This look like it isn't working with Yuoki for example, it is ?

My bad, it works now ! I had to update settings in "in-game options" menu too, not only in map setting before being in a game.
Thank you for your job !