The problem statement is our server is low in capacity and when we try to run 40 to 50 test cases, Server is sending timeout.
So in the soapui , UI preferences we can set the HTTP connections - Max connections per host . Can we get the same feature in command line too.
Hope this helps.
Seems like you may be stuck
one option is to look at open source code see how its done and fine out how to add the same capability to the tetsrunner
Check that out and see if it helps.