Today we released a new feature which allows you to set your account in eBay only mode. The feature is only available to accounts with an eBay account registered. It is located in your account admin next to the Settings menu option.
The eBay only mode allows you to hide and disable all of the non-eBay related areas of the Admin. You can change the mode back and forth as needed.
This mode may be helpful to list items to eBay quickly without setting them up for additional channels.