To test that it works, set the ArticleEdit Form as the Startup Form by clicking on the down-arrow next to the ArticleEdit form in the panel on the left. The lightning bolt icon will appear next to ArticleEdit if you’ve done it successfully.

The App Browser with ArticleEdit set to Startup Form

The Startup Form has a lightning bolt icon.

Now run the app. You should see the ArticleEdit Form running, and the dropdown should be populated with your article categories:

The ArticleEdit Form running, with the categories dropdown open, showing that it is populated with the categories from the Data Table.

Remember to set Homepage back as the Startup Form when you’ve finished.

The App Browser with Homepage set to Startup Form