Assigning Airfoils to Blade Sections
Click 'Load' in the aerofoil screen below:
This shows all of the aerofoils available:
That's a total of 13 aerofoil sections available (although 3 of these appear to be just cylinders). The simplest way to use them is to go to 'define' at any blade station that you wish to change:
Double click in the blank white rectangle:
You can see that that blade station has now been changed to the newly defined blade section number 5.