Mulled window units with L or R casements seem to lose handing in schedule

[GeneDavis]

Take a look here.  In elevation it is clear that the flanking units, which got schedule callouts as W05, are different.  I drew the L one and mirrored it to get the R one.

 

 

One was edited before mulling it all up to get the casement handing opposite from the other.

 

So why do they come into the schedule as the same unit?

 

 

I can edit the schedule to uncheck "group similar" but then I get more lines of other windows, not mulled, that I don't want.

[GeneDavis]

Got it.  Simply put in text in the comments field, anything to differentiate, and you get a different schedule callout.  

 

And since Chief does not report the makeup of mulled units, you gotta do this in comments anyhow.