Step 1: Invite the @Epiphani Bot to the channel that you wish to make your playbooks visible in using the /invite command.
Repeat step 1 for all the channels you wish to have your playbooks visible in.
Step 2: Get to know your Epiphani Bot
Run the /epiphani help command.
Now you can run the /epiphani update-channel-list command to set the list of channels that you wish to make your playbooks visible in. The /epiphani command can be run from any channel, not just the one where the epiphani bot has been invited to.
Click on the 'Select Channels' button and you will be shown a dialog with all the channels in your workspace.
Select the channels you wish to share your playbooks in and click on 'Confirm'. epiphani bot will confirm you selections.
You can add/remove channels from this list at any time by running the same /epiphani update-channel-list command.