ZOOM
From the ZOOM tab you can view and manage your license pools, you can create a new license pool or edit an existing license pool.
To create a new license pool, click the 'New license pool' button at the top right of the page, determine a name for the pool, and choose the number of licenses. After the pool has been created, click the name of the pool to access its settings. You can add a new user to the pool by clicking the '+' button. To remove a user from the license pool, click the '-' button behind their name.

ZOOM license pools can only be added in the Enterprise plans. The Connected and Starter plans have one fixed ZOOM license pool to which all licenses in the space are added.
Depending on the licence, multiple users can be added to the pool per licence.
Subscription
From the Subscription page you can view and manage your current contract and billing information, as well as upgrade or downgrade your subscription. To make changes to your contract, click the button 'Get a quote to upgrade', beneath the section 'Your contract'. You will find several tabs to change your contract, billing information and payment method.