I've searched the world over (or at least the World Wide Web) and haven't yet found an answer to this question. There is at least one "work around" option out there, but not really a solution.
Possibly, by having a "field" to type a value for the Title. And having the Title (usually set to "Popover") in the Popup set to the field.
Possibly you meant something else !!!
What I think is sorely needed is an object oriented approach in FMP. Being able to tell the pop-up menu object to change its state (values) would be very useful. I keep hoping for something revolutionary like this in every release so FMP is more like contemporary products.
Yet, FMP works so well in other ways, I guess I let it slide...Still it's frustrating when it should be simple to do something, but there just isn't any way.
HOPE THIS HELPS.
You can not change anything in layout-mode in FM Go. All things need to be change in FileMaker Pro or FileMaker Pro Advanced
It cannot be changed if you are referring to the 'Values' header which only appears on the iPad but not on the iPhone. It started with the FileMaker Go 14 / SDK 14 and remains the same in the latest FileMaker SDK 15.0.1. Here is more info:
FmGo 14 turns vices into virtues
Retrieving data ...