@heather_o
First, thanks to @pendean for the link to the other thread with the sample file.
You could just add static text to the Window Tag's view block, making the attribute that shows the HeadHeight property right justified and nudging it over a bit. You will not be able to do that so that the head height in the tag is always centered, which would not be acceptable to me. The approach I would take would be to add a formula property to the WindowObjects property set, called HeadHeightForTag, perhaps, with this as the formula:
RESULT = "[HeadHeight]" & " H.H."

In the screenshot, note the light gray background on the [HeadHeight] text in the formula. That indicates that it is a reference to that property, created by double-clicking on the desired property in Insert Property Definitions list box at the lower left of the Formula Property Definition window.
Then I would modify the tag to show the formula property, by changing the Tag property of the attribute definition in the Window Tag Block view block from WINDOWOBJECTS:HEADHEIGHT to WINDOWOBJECTS:HEADHEIGHTFORTAG. Running the MVBLOCK command, choosing the Update command line option, and selecting the existing tag results in this:

I believe that is what you are trying to do. The attached file is a revised version of the one you posted in the other thread, with those changes made.
David Koch
AutoCAD Architecture and Revit User
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