You can create a separate user for the person who needs to access your admin page in Manage//Users and assign the corresponding rights to that user. See the list of available user roles [[System_user_rights| here]].
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You can create a separate user for the person who needs to access your admin page in Manage//Users and assign the corresponding rights to that user. See the list of available user roles [[Adding_other_users_to_the_system#User_Roles| here]].