When entering data into the Key Field of a Loop Screen, you may need to enter or select the same field value more than once. For example, you may need to inspect three different bedrooms while inspecting a home. Since "bedroom" is most likely the best distinguishing aspect of the data collected in that row of the loop screen, you will need to select "bedroom" for the key field value three separate times.
In the Advanced Form Builder, the situation described above can be solved with the loop screen setting Allow Duplicate Entries.
Allow Duplicate Entries
1. Navigate to the Forms page and launch the Advanced Form Builder.
2. Add a loop screen or select an existing loop screen to edit.
3. On the left settings panel under Screen Settings, click Allow Duplicate Entries.
4. Save and publish to test on mobile.
Note: this settings is not yet available in the Builder BETA.