Often times competitions run an initial pool round where teams within the same sub-region play each other first. A good use case for this may be zonal gala days.
As opposed to creating individual pools and populating them manually you can now auto generate them based on sub-region.
To do this, first create a new pool round.
Once you have the round created, you will see two buttons - "Add Pool" and "Generate".
Click "Generate" then "Auto generate pools by sub region level" to automatically create all the relevant sub-region pools.
Following this a pool will be created for each sub-region, with all the teams within that region being added to a round robin style draw.
Each pool is also automatically assigned one progressor, which can then be used to map out the rest of the draw.
Progressors
To progress a team (or teams) past the pool round, go back into "Edit Mode", click "View competition and results", then select "Settings".
From the "Pool Settings" page, scroll to the "Progressors" section and select the teams who will progress onto the subsequent rounds.