You will find the Channel Management under Settings > Channel Management. Subscribe to available channels or remove a channel from the account.
Simply drag and drop the desired channel from the right onto a box on the left.
The master channel is your standard channel. This channel is used by default when creating Smart Views, and for your automated reports.
Depending on your HQ revenue version you will be able to add several more channels to your account making them accessible in the Smart View and Parity Check. You can also shop from multiple channels at once with a static LOS.
Removing a channel
Removing a channel is straight forward. Simply click the cross right next to the channel icon.