The field is used for Full-text search, which can be used to filter specific data right in the applications. To set this field, follow these steps:

1. In the Fields tab, in Project settings, click on the + button, select TextField from the dropdown menu and fill in the ID, e.g., fulltext_search.
2. Fill in the Source name, in this case full_text.
3. The final step is to click on the green checkmark button to save the settings.