Is There a Limit To the Number of Users That Can Be Set Up?

No, there is no limit to the number of users that can be set up.  However, we recommend that you consider using groups if you will be having a large number of users with similar privileges, to help make the management of the user’s access easier.

See “What is a group and why would I want to set one up?” and “How do I create a group and assign users to it?” for more information.