Userbar - Features
Click the colored circle to the left of your username to set your current online status (Fig. 1.1)
(Fig. 1.1) Set online status
Share a thought...
Click on the Share a thought... icon to the right of your username, and use the WYSIWIG Editor to set a status update (Fig. 2.1)
(Fig. 2.1) Update your personal status message
Clicking the + sign inside the Share with... container to select which community channels to share with (Fig. 2.2)
(Fig. 2.2) Select community channels to share with