To restrict a Person's access to Setyl, you could simply mark their Role as "No Access" which means that they are not able to log into Setyl. Otherwise, you could mark them as an "Employee" if they are currently an "Owner", "Manager" or "Supervisor". This is because Employees tend to have less user permissions (you can adjust which exact permissions in Company Settings).
To restrict a certain Person's access to the platform by changing their Status:
- Log onto Setyl
- On the left tab click People > All People
- Select the Person in question
- Select "Edit Person"
- Edit the "Role" field
- Click "Update Person"