Hello!
I found the SAP note 2005477. It seems that it is not at the Visual Admin 
.
The parameters that would be interesting for this thread would be:
- jco.destination.expiration_time: Timeout period after which pooled idle connections can be closed (the default value is 600000ms, or 10minutes).
- jco.destination.expiration_check_period: Regular time interval for checking if pooled connections have expired and will be closed.
Regards,
Isaías