As David shows, those functions are available in the Archicad 8.1 library. If you have a legit license for Archicad 8, Archicad 8.1 is a free upgrade. You should contact the nearest reseller to get it at once. It corrects a lot of bugs and adds some features.
AC4.1-AC26SWE; MacOS13.5.1; MP5,1+MBP16,1