I was wanting to add another store but having trouble. I have the the extension installed and tested fine. When I try to add a store I put the url and email in I get Wrong store url or email.
To add a second store, make sure you have created account for this second store and it works perfectly. this means your 2 accounts should work perfectly individually. then log into one account and add the other store. So in essence you are managing 2 accounts from one.