Permissions can be managed by providing root folder path in user management.
Create a folder structure for which administrator can provide access to other non-administrative users.
Add folders:
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Add User:
Add a non-administrative user and select root folder path i.e. \Building1 in this example.
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*indicates a required field.
Login with the newly created user (User1) which is for building 1.
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Access will be limited for Building1 folder to user1. The same will be applicable for other users with their assigned root folders.