Unbeknownst to many, HydraCAD has a command (shortcut CAP) that will change many properties of attributes within a block. I have used it mostly for changing the text style used or the color (usually set be the background author) of attributes, but it does more than that.
This command is also available on the HydraTools->Modify->Attributes menu and the HydraTools toolbar
The H-Factor 
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