Merging is what makes Cohort different. Two or more groups can combine into one shared space with its own chat and events, for a set amount of time — built for the moments a few groups want to do something together without permanently absorbing into each other.
Any group can send a merge request to another group, with a proposed length of time attached.
Once accepted, both groups' members can see and take part in the merged space.
An already-merged group can invite another group into the same merge later — same request-and-accept flow, and once accepted, everyone joins the same shared space together.
The merge gets its own group chat and can host its own events, shared by everyone involved and kept separate from each group's regular chat.
When the merge window ends, every group in it splits back apart automatically — no cleanup required on anyone's part.