Select Similar looked like a great new feature (Architecture 2011 & 2012). I then read about SELECTSIMILARMODE . I changed the SELECTSIMILARMODE setting to 1 expecting that only similar objects of the same color would be selected. That does not seem to be happening. Select similar seems to ignoring any changes to the SELECTSIMILARMODE setting in Architecture 2011.
Autodesk confirmed to me that SELECTSIMILARMODE is not working as designed in Architecture 2011 - although it works as designed (and as described in the HELP) in vanilla AutoCAD 2011.
I was hoping that the issue would've been resolved in Architecture 2012, but it's not. Autodesk, please bring parity between AutoCAD and the [even more expensive] vertical products like Architecture. Please bring SELECTSIMILARMODE to Architecture!