Adding "Duplicate" button to Consumables and Accessories

[teknisksno]

Hey!
I´m using Snipe-it on Chrome an have tried to research without any success on how to add the "Duplicate" button under "Actions" and other options that exists for Assets to Consumables and Accessories as well. My understanding is that the Custom Field option is not what i´m looking for as it goes under Assets alone. Anyone here who has an idea on how to add buttons to these to pages?

Also, how do we add buttons that exist under Assets to Accessories and Consumables? For example if i want to check out more than one accessory/consumable, i need to do this several times.....

We basically need to add functions from Assets to Accesories/Consumables