Open your channel settings by right-clicking on the channel name in your channel tree, or by hovering the cursor over the channel name and clicking on the 3-dot button that appears to the right of the channel name.
Use the channel menu to:
Subscribe to all subchannels
Manage members
Create new channels
Channel settings to edit channel description, set up plug-ins or remove a channel without posts
Sort subchannels
Move a channel
Rename a channel
Mute a channel
Mark a channel as favorite
Mark as read
Collapse a channel
Expand a channel
Archive a channel/branch
Leave a channel/branch
or
Click the down arrow placed above the channel message window next to the channel name.
Use the channel menu to:
Manage members
Add Whiteboard
Move a channel
Rename a channel
Channel settings to edit channel description, set up plug-ins or remove a channel without posts
Mute a channel
Mark a channel as favorite
Archive a channel/branch
Leave a channel/branch