Can you join two accounts to one without having to logout one to login the other account?

[cjperez]

Can you join two accounts to one without having to logout one to login the other account?
Eg alarm system in the house and another in the business? Can the same email account be monitored from it?

[GrandWizard]

You can only have one account but you can have as many Envisalinks as you like on an account.