Multiple Logon Disable in SAP

Hi,
I have disable the multiple login's in SAP through RZ10.When users network session was  lost any reason.he will  not able to login again
because the only option "Terminate this login " Showing . I want to enable other option "Continue with this logon & ends any other logon"
so the user are  ends the free session.Please help
Rgds
sudarshan

Hi,
Please check the setting as '1' as in following screen shot .
You will find this error after setting as

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