Auto ACK

Stupid question time.

Can I setup two threads for testing with both using the file protocol and then have thread 2 ACK back to thread 1 when I resend a message through thread 1 to thread 2.

I’m doing some testing and need to see an ACK come back.

I added a route replies raw rooute on thread 2 but not sure if there is a proc or where I need to place it that would create the ack for me.