Members. Click to see a list of members in the channel or to add new members. The number on the icon indicates the number of members including the owner.
Settings. Click to see channel information and configuration opens.
Number of members of the channel. This includes the user who created the channel and all the other users they have added. There are 2 members in this channel, Sara Carlisle, the channel creator, and jared, a user she has added.
Add a group. Click to create a Group that includes multiple channels. See Channel Sidebar: Finding Channels for more information about adding groups.
Expand/Collapse channel categories. See Channel Sidebar: Finding Channels for more information about expanding/collapsing the sidebar.
Full/Compact sidebar view toggle. See Channel Sidebar: Finding Channels for more information about listing channels in the toolbar in full or compact view.
Channel sidebar. List of all active channels. Lets you view and switch to other channels while a channel is open.