building a request field from a static and datagen value

I figured out what to do. Not sure if it is the best solution but it is "a" solution.
What I did was added another DataGen step called "Template" and it looks like this:

SOAP-MATTER-${DataGen#RandomNumber}

and the ${DataGen#RandomNumber} bit is referencing the value that I got from a previous DataGen which is Number type that generates a random number.

And then I added a PropertyTransfer Step that transfers that generated value into a property I named matterID.
Next for the request, I am using that value referenced like:
${Properties#matterID}

Seems to be working. But what I would like to figure out is a way to see what the actual value is when the request actually got sent.
Does anyone know how I can see what the actual value that was sent in the request is?

If you click on the 'raw' tab on the testStep it will show the values being sent.

Thanks.
I also found that I can view the Debugging tab at the test level and to view the raw request. But I had to make sure that the content pane of the raw request was expanded.