LabVIEW SoftMotion Lite is the same install as
LabVIEW SoftMotion Module . The only difference between the two is that SoftMotion automatically becomes SoftMotion Lite after the evaluation period is over and the module is not activated. There is not specific install or configurations to get SoftMotion Lite.
Additional Information
You will want to refer to
LabVIEW SoftMotion Selection Guide to determine if you can use LabVIEW SoftMotion Lite or if you will need the licensed version of SoftMotion.