There are many example of previous contributor's work available but I haven't discovered anything related to function keys. Just a few examples are here: http://www.ethoberon.ethz.ch/software/ ftp://ftp.ssw.uni-linz.ac.at/pub/Oberon/LinzTools/ http://www.zinnamturm.eu/subsystems.htm ===== Thanks: as always Astrobe is a mine of information.