Would it be possible to get a warning when you fly at the wrong FL according the SemiCircular Rule?
Also a notification of the several transition altitudes by country would be welcome during the flightplanning.

SkyDemon has no idea what altitude you're flying at relative to standard pressure setting, so I don't think this feature would even be possible.

Tim,
Agree, but in planning mode you can "remind" to the correct (even or odd) altitude based on the magnetic course...
On the other hand and once knowing the TA by region, you can give a warning in flight as above the TA everyone flies at 1013 which is measurable by GPS...or am I wrong...?