User Groups - Can limited user access Marketplaces Module?

[MusicMan]

I have a client that wants to allow a user to manage his Ebay orders but doesn't want to grant full access to his site. I created a User Group and added the user to this group but even when allowing access to all of the option available in the User Group "Privileges", the user still does not have access to Ebay or Amazon (marketplaces module) without being an administrator.
Is this possible or am I missing something?

Thanks in advance!