With joy on the programmable keys I took the transmitter and the keyboard (Win7 64bit) for the installation manual in operation. Everything worked, but there was in the SetPoint software does not make a selection in order to assign a function key. After reboot and the usual measures (on / off, USB in / out) brought this does not change. Only an Internet search brought me to an forums entry: One must in the Unifying software Delete the pairing with the keyboard completely and new detection (pairing) start. And lo and behold, suddenly in the SetPoint Software 2 other riders with this functionality. Therefore, the point deduction.