Adding a Forum to a new profile
Installation and Configuration
Yes, to create a new quota --> ACP--> Users--> quota browser
(and to save time you can 'clone' a currently existing quota that has most of the settings you want for your new quota, like "admin"...and then give it a new name and make adjustments as to how you want it to be different from your Admin quota.)
To change a user's quota (like to promote or demote them from being a moderator,etc) go to their profile page and then to their 'settings' (the gear icon) and look at their Profile TAB to change their quota.
If you create a new profile, you can select their quota in the same location of their settings.
If you want new members to automatically be assigned to a particular quota (like a regular member), or to have a choice of more than one quota they'd like to be in when they first sign up to your site, you'd set this here in the User module, under the Quota Config TAB there:
http://(yoursite).com/user/admin/quota
There, you can check or uncheck under each quota the box to "allow signups". For example, you likely would not want some random stranger signing up on your site as an Admin without your permission, so you'd want to UNcheck that box for the Admin Quota. You can put any member into the Admin quota manually yourself whenever you want.
On my site, the ONLY quota I have checked to "allow signups" is the (regular) member quota... my typical member who does not have any special moderator, 'sponsor/donor', or admin powers. So, all my new members are automatically put into the general Member quota when they join my site- they're not presented with any other choices.
Glad it was of help!