Try the following steps.

 

1. Separate the operators in department

 

4 operators with expertise in Windows Issues --- Window department

4 operators with expertise in Mac Issues --- Mac department

4 operators with Microsoft Office Issues --- Office department

 

2. Open CuteSoft_Client\CuteChat\SupportCustomer.aspx and add the deparment information there.

           <option value="Window">Window</option>
           <option value="Mac">Mac</option>
           <option value="Office">Office</option>

 

After you finish this,  all the customers who request for live help will automatically have the deparment information. And let your operators just accept live support requests to their own department.