To record either share splits (subdivisions) or consolidations, go to the Shares page (under Ownership) -> Adjustments - Add Adjustment.
Once you have clicked on "Add Adjustment" button, fill in the details of the share split.
You can see from the above in the "Details" section the nominal value of the share class before and after as well as the shares before and after the share split.
Additionally, if you would like the share split to adjust the incentive pool, please tick the "Adjust Pool Authorizations". This will adjust all option security plans with this share class. This is not compulsory.
Once you have added all the details of the share split -> save (as draft or publish).
You can see the number of transactions that has been subdivided due to the share split. You can click on the Transaction to see a list of the subdivided transactions.
If saved as draft, you can edit or delete the share split by clicking on the action button (far right with the three dots).
Alternatively, you can add consolidations.
Once you've entered all the consolidation details -> Save.