Hello, 

I'm working on Odoo 12 cloud, with Studio. 

I've creating several custom fields in the sales order module, and I would like to be able to copy those custom fields when I press the "Duplicate" in "Actions". 

I've seen that it seems possible to overide the Duplicate action in order to customise it, but I don't know if this is something possible with Studio, and if possible, how to do it. 

Thanks for your help !

Thomas