To add category to Lync accounts navigate to the following path:
Click on Service Management link. Select Persistent Chat tab and then Select the Chat Categories tab:
Fill in the following fields to add a category to Lync account.
Category Name: Provide organization name - category name.
General Settings: Check the following options, if you want to enable.
Enable Invitations
Enable File Upload
Enable chat History
Chat Room creators:
Entire Organizations: Checking this option will allow everyone to create chat rooms
Users: Select Users.
Chat Room Access
Entire Organizations: Checking this will allow everyone to access chat rooms within this category.
Users: Select Users.
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