Difficulty adjust window sill and head height for schedule

[ray]

I am using a manufacturer window family throughout my project.  It's head height and sill height are not take from where we are scheduling them in this project.

After reading lots of posts it seems that the reference level doesn't carry through into the model, so I can't make a dimension that comes in.  The only workaround I've found is to create a schedule column that subtracts 3" from the "head height".

Short of rebuilding all these windows is that my best bet?  Ideally I'd like to create a dimension from the reference level to a reference plane and then have that appear as a parameter.  It's just not working out that way though.

The family is attached, I've mangled it a bit while trying to find a solution.

[barthbradley]

The Window's Sill and Head Height are reported correctly for me in a project. Do I misunderstand the issue? 

I don't understand this sentence: "head height and sill height are not take from where we are scheduling them in this project". 

[ToanDN]

Is that the inner/outer of frame kind of issue?

[ray]

Yes, it is an inner/outer frame issue.  The family is set to report elements on the outer frame as sill and head, I need to report the inner frame on my schedule.

[ToanDN · Accepted solution]

Doing it like you did with a formula is the easiest way. If you have to mix "inner" with "outer" families in a schedule, you can create a conditional formula to subtract 3" from some types and 0 from others.

If you want to fix it at the family level, create a new shared parameter with the same formula, and use it to report the desired head height. Same for sill height.

[ray]

Thanks for answering my question!

I'll be posting one more question in a separate thread about the sill.