To enable chat in release 4.5, simply add and enable the plugin, configure the plugin, and configure the appropriate widgets. Chat occurs on the 4.5 User - Chat widget.
The widgets concerned with chat are:
The User - Banner with Presence replaces the previous User - Banner widget in 4.5 to enable viewing presence and starting chats from links in online friends' user banner.
The User - Chat widget enables the online friends list and chat windows.
The User - Hover with Presence widget lives in the page footer. You will need to replace your current User - Hover widget with this widget to enable viewing presence and starting chats from links in online friends' user hovers.
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