It is not possible to do it in Aspen Plus, as it is very low temperature and properties are not calculated at this temperature (even if you will use REFPROP).
However, you can use Aspen HYSYS for the same.
I am attaching a picture of HYSYS, where the temperature of Helium goes below 10K. But
1. I have used Wilson model (Please use appropriate model as per your component along with other available components).
2. You have to see, If it really is giving good physical results.