Showing Value List when tabbing

[Richard Thomas]

I have an address record with seven fields.  To enter the data, my users like to tab through the fields in a set order.  One of the fields is set to pop up list with a value list of world countries, the first of which is 'United Kingdom'. 

My problem is that if I click in the field with the mouse, the popup is triggered and the value list is displayed for selection with the mouse. However, if I tab through the list, when I tab into the field the popup is not triggered so the value list of countries is not displayed for selection.

How can I set the layout so that tabbing into that field will show the popup list?

[comment]

Is this on macOS?
https://support.filemaker.com/s/article/Pop-up-Menu-fails-to-open-when-entered-via-a-Go-to-Field-script-or-tabbed-into-on-a-Mac-1503692913405?language=en_US

Note that users can press the space bar (Esc. on Windows) to open/close the pop-up menu.

[Richard Thomas]

Thank you!  Beautifully solved by changing from popup to dropdown.  Nice one.