Hi Nitish,
This is not possible. SRT_UTIL is not intended for excessive monitoring, the goal is analysis of a scenario regarding performance, functional and payload, or error analysis. 2 hours should be enough for this. If not, you can simply extend the validity for another 2 hours, after 2 hours is expired, etc.
Nb this could generate lots of data in a short period if lots of services are called, therefore it's not recommended to leave it on for too long time.
Cheers,
Attila