How to assign which user groups have chat room access

Problem:

How can I assign which Invision Power Board user groups have chat room access?

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Solution:

Please log into your Invision Power Board's Admin CP, and click the Components tab. In the left navigation, click the "Chat Settings" link under "Invision Chat (ParaChat)". Scroll down to the "Access Permissions" section. With your mouse, highlight the User Groups that you want to have chat room access (depress the CTRL key to select multiple groups). Click the Update Settings button to save your edit.

See also:
I see the "Site ID does not exist on the chat server" message
How to authenticate users against my Invision Power Board member database