Multiple instances of same object with object variables for production game

Hey all,

I am making a production game but would like some assistance on pop up build menus. I have a scrapper object to scrape dirt and then make a clean object.

When I add more then one instance of the scrapper to the scene the object variables of both scrappers change together and are not seperate so the variable of the object changes both of them when I am only on one menu.

Is there also a better way to create production menus for each object and multiples of the same object (like factorio)

Thank you in advance