Hello everyone.

I would like to know if is it possible to add properties like CFM or Pressure Drop or Velocity to duct systems or pipe systems. I have seen that whe you use the tab view-annotate, the duct system shows some properties like sizes, pd, V, F, len... all that parameters appear in 0, so, it's probably a way to change it to a specific valeu, how could you do that?

Thank you everyone.