Parralelise Processes

Hi,

I have 3 test step in my Stub testSuite.
1. GetMsgFromMQ
2. CreateResponse
3. SendMsg

The second step creates message responses and call "SendMsg" with the good content several times and loops to the first step.
Between 2 message reponses to the same received message, I have a "sleep"of 10 minutes.

So if I receive 2 messages at the same time and I have to response with two messages for each one, the second message will be treated 10 minutes after its reception.
I want to parallelise processes by doing something like :
1. GetMsgFromMQ
2. CreateResponse => launch another instance of the TestSuite + answer with several messages + without looping to GstMsgFromMQ (since another instance is started).
3. SendMsg

Do you have any idea or suggestion to do that ?

Thanks for your help.