With Live Population, you can update a field’s choices with the contents of a List field.
- In the form editor, open the field whose choices you want to update.
- Click the Live Population tab.
- Select the Allow merge tags to be replaced in field properties checkbox.
- Select the List field in the Replace Merge Tags When Field Is Changed drop down.
Select the Replace Merge Tags In Field Choices checkbox.
Choose whether the List field items should be appended as new choices or replace the current choices.
If the List field is a multiple column List field, choose if the items from all the columns or from a specific column should be used.