Odoo duplicate field value with server-action

Question

How can I duplicate a value with a server action for example

field 1 : x_bedrag = 10 euro

field 2 : x_betaald = empty

Run server action -> field 2 becomes (x_betaald) = 10 euro (model: x_drivers_lines)

Answer 1

Found the answer: Server actions

-> New -> Type model -> Set type of action to write on record

-> choose the record you want to copy to

-> set the value to the record you want to copy from