for better or worse, those objects have been replaced by the new curtain wall tool.
the archicad 11 migration library is included in the installation by default: make sure you load that library with any existing 11 project . . . or if you want to use those objects in 12...
./Applications/Graphisoft/ArchiCAD 12/ArchiCAD 11 Migration Library
~/archiben
b e n f r o s t
b f [a t ] p l a n b a r c h i t e c t u r e [d o t] n z
archicad | sketchup! | coffeecup
