There is an 'Attention Getter' asterisk before the callsign for non-approved a/c at or filed above FL290, with a couple of further conditions as well. It is permanently displayed. Have yet to see how easy itis to work with on the radar. Only seen it on the sim so far.
Toggling between options.. now that would be nice, but you obviously don't have the same steam-driven system that we have!!
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"Take-off is optional, Landing is mandatory"