L3 - Default Description
AT:
- It is possible to select a group of external events and added as a source to the table
- events with no group will appear as a separate option (ungrouped events) that can be selected
- there is a dedicated option to select all events whether they are grouped or not
- all events option cannot exist along with any other group as a source (We should NOT allow a user to select both ‘all’ and a single group of external events)
- The external event group selection is not displayed in auto generation and pressing the add button will add all the external events