
Hi Barbara,
Glad you like our interface and are getting around to using our software.
In order to get around this issue, you would need to first run DEMMETA on the DEM. I would recommend that you run this in Focus -> Tools | Algorithm Librarian – All Algorithms – DEMMETA.
If you have any other questions contact our support team at support@pcigeomatics.com.
Hope this helps!
Cristina