Not able to find where to put z number range for employee in spro node so that while making Employee it will take z number range

Hi Everybody,

     I made a z number range as Z5 for employee in the spro node "Define number range " .Now i need to put it some where in spro node so that when i will make employee in WebUi ,it will take Z5 number range not the default BP number range .kindly guide me...