In a column family I'd like to use the height of column in a parameter's
formula. Since columns are contrained to Lower and Upper Ref Levels, there
isn't a parameter for the height. I've tried adding a reference planes
locked to the Ref Levels, but trying to add a parameter over-constrains.
I've tried using "Upper Ref Level" in the formula, but that wasn't
recognized. Is there something hidden I can use for the height of the
What I'm trying to create is a metal stud with punchouts, so need to array
punchouts based on height of column. I succesfully did it with a joist
(beam family) using the "Length" parameter.