Adding Character Groups as participants on events

Is it possible to add a character group as a participant in an event? I have an event that involves several groups (a war), but can’t add the groups as participants.

You can modify the relationship in Advanced Settings to do this (Advanced Settings - Aeon Timeline 3 Knowledge Base)
Open Settings (the cog icon), then the Data Types tab, then Edit.
Under the Relationships tab, choose Participant on the left, then on the right, scroll to the heading “Allowed item types for this relationship”. Character should already be ticked, and you can tick Character Group aswell.

Note that while this can add a Character Group as a participant to an event, it does not automatically add all the characters in that group as well. We currently have as a feature request the ability to have inherited relationships, which you can vote on here: Feature Requests | Aeon Timeline