CTRANSUM panel provided the correct information for the customer needs, but he would like to collect data every 5 minutes instead of 15.
The interval could be lowered dynamically changing the value of TRAN-SUMMARY event on the CSCHEDUL display changing column EVERY from 15min (default) to 5min, and then it could be changed on the Sysview Parmlib member CICSSCHD, EVERY parameter:
DEFINE TRAN-SUMMARY DESC 'Transaction Summary - Interval Records '
DATEBEGIN * DATEEND *
TIMEBEGIN MIDNIGHT TIMEEND *