(2022-04-05, 17:40)Magnus Forsberg Wrote: How do I trigger Lasses viewer to show the imaginary surface created by this "empty" file?
I don't think it can.
I misunderstood what you meant. I though you were asking what programs support them, not have a setting to explicitly allow you to view them. That said, you could change the color of them to, say, red and have them show up.