You cannot view this number directly, but you can check your license limits, then view your current active users to determine how many have been used. To check license limits, click the Admin tab. Click the Admin Settings link under the tab bar. Click the About link from the left pane. From the resulting page, the License section displays the details of the license key, including limits. To count active users, click the Users link beneath the Admin tab, and view the count of users in the Active collection.