Hi Aham,
You need to open up the SignalExpress Assistant (The blue box in our block diagram), and set up the SignalExpress recording you would like to do. When I opened this on my computer, it looks like just an empty SignalExpress file.
Once you do that, you can right-click on any inputs and outputs and change them under the select input/output tab.
Is there any reason you'd like to do this reading in SignalExpress instead of LabVIEW, if you own LabVIEW? They have the same functionality, and LabVIEW can do much much more.