It might be difficult for some blogger that have two e-mail account that control different blog. Example, e-mail A for blog A while email B for blog B. In blogspot, there are an option that can add another e-mail that can be authorized as a administrator account. We will show you how to merge that email in one account with administrator access on that two email.

First, login into your Blog A account by entering the email A account. After login into that account, choose the desired blog and click on the "setting" option.

In the setting option, choose the "Permission" tab.

In the permission tab, click on Add Author and put your email B account here and click "invite".

Then, login into your email B account and click on the invitation link in your inbox. Enter the password and click on "accept invitation".

By accepting the invitation, you are now can access on your blog A account using email B account. But you still can't get access to the administrator field.

To get that access, login via email A, click on the "setting" blog that you already invited, in the permission tab, click on the "grant admin privileges" and you can now edit all the setting of blog A and blog B via a single email account. That's all!