I found a solution which I thought I would share in case anyone else wants to do this.
1. Open up the net_connect probe you want to add the robots to (if you want to, create any groups you want)
2. Select the hub in the left pane of IM
3. In the right hand upper pane all of the robots will be listed (from here I sorted by OS as I wanted to group them by OS in the probe).
4. I highlighted all of the robots I wanted and dragged them to the net_connect probe and added to the groups I wanted them in.
Doing this allowed me to add all of my servers really easily and applied the default configuration and also added the service 48000 to monitoring.
Thank you
Kevin