Allow an Admin access to support tickets


How do I allow an Admin access to support tickets?

I have an admin who I want to handle support tickets but I he cant see or take tickets

This is how I have the settings:

I see just 1 admin on the staff dropdown selection but I think that's me so I cant assign it to him.

Is this the problem:

Please note that, in multisite installs, this feature currently only allows for the network admin to be assigned. In the next update, it will be enhanced to allow you to assign a different user.

Is the solution to make this person super admin? Is that a safe solution?