And what part of this are you not able to do?
You are describing the standard function of a "use values from field" value list. It lists values from a specified field in a table. If you add new records with new values to that table, the new values automatically appear in the value list.
Οκ. Sorry man. I only worked with "Use custom values"
I didnt see that option.
Im new in FM.
Again sorry and thank you
Nothing to apologize for! It just wasn't clear to me where this process was failing for you,