The Mice is the mechanic where should I keep him?
In Administrator / Supervisor
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If you have actions that only mechanics can perform then its better to have a separate mechanic group in your app and add the user to that group. If not, then you need to check your requirements, and add to appropriate group.
As Stewart mentioned, if you provide more information then only we will be able to help.
Yes Thanks!!
I'll take care of it next time.