How to export/import only Titlebar & Windowframes to another skin

I've invested a lot of time into my WinVista-based theme.  I need a way to import only titlebar/Windowframes (and all properties/images) from another Win7 skin. 

I dont think there is a Skinstudio setting that conveniently exports/imports parts of a skin (at least I didnt see any).  However, Im guessing there is still possible way to do this that expert skin builders use; since it wouldn't be feasible to copy all possible titlebar/Windowframe settings (one by one).

EDIT:  I think I found settings file: SkinName/SkinName.uis 

 It looks like I need to copy at least sections labeled:

[WindowFrame.*]

Is there a section I need to copy for titlebars?

Thanks in advance!