When menu Datei / Beame / Beam (IR) Empfang AN
(German version, sorry) is tapped, console output
says "KA: AB enable BeamReceive".
If the same menu item is tapped once more, console
output says: "KA: AB disable BeamReceive", although
the menu item is still labeled "AN" (=on), and
not "AUS" (=off).
Some kind of status feedback would be good, e.g. by
changing the menu item label from AN to AUS if beam
receive is active.