[Xymon] How to Change Default polling Interval

Hi Currently what ever Interval I set in "clientlaunch", xymon still use 5 minutes Interval

example :-

[TEST] CMD /xxxxx/ext/test.sh INTERVAL 50m ENVFILE xxxxxxt/etc/xymonclient.cfg LOGFILE xxxxx/logs/xymonclient.log

How can i set this script to execute by xymon every 50 minutes or 2 hours ?

Thanks