Go to Users & Subscription (your initials → Admin Settings → Users & Subscription, or app.vizrm.com/user-management) and open the Plans & billing tab.

The Seats & licenses card shows your plan, the price per seat, your renewal date, and a bar showing how many seats are assigned against how many you've bought.

To add a seat, click + next to the bar. If your account already has a subscription and a card on file, the seat is added immediately. If this is your first purchase, you'll be taken through checkout.

To remove a seat, click −. The button only appears when you have a spare, unassigned seat — you can't drop below the number of people currently licensed. To free one up, set someone's Plan to No license on the Users tab first.

When the change takes effect: adding a seat applies straight away. Removing one lowers your bill from your next renewal.

Manage subscription opens the rest of your subscription, and Invoices & payment takes you to payment details and past invoices.

When navigating to the shop, either by selecting Manage subscription on the Plans & billing tab or directly via https://app.vizrm.com/shop, you can add additional modules/products to your subscription where applicable and adjust the ones you already subscribe to.