First you will want to navigate to the Collections Settings.

You can do so by clicking into the Collection > gear icon

Or by going to Network Settings > Navigation > Collections and selecting the three-dot menu next to the Collection name. A Collection name can be up to 40 characters long.

You can also click on the Collection in the left hand navigation and select the three dot menu > Settings

From there, select Collection Details

And choose a new name for your Collection!

To learn how to manage your Collection settings, check out “How Do I Manage My Collections?