You can buy more seats or membership even if you already have an existing or active subscription.
Each member of your company or team that has access to the Streamline app and use the premium features (copy/download vectors, change colors, etc.) should be licensed.
To add a seat or membership, just go to Account > Team Membership.
On this page, click 'Buy more memberships' .
On this page, just click "Update Plan".
Then, update the number of seat/membership under Quantity. You can click View Details below to check the total amount that you'll pay. Don't forget to click Confirm once you're done.
Want to know more about the seats/additional users? Check out our related article for more info: