Even in their flightmanual the wride that they are working on it!
APP MODE AFTER GLIDESCOPE CAPTURE
1. ILS GUIDE. Visible only when both localizer and glideslope have been captured. It moves in relation to the FPM showing both glideslope and course deviation. To maintain a perfect approach, you have to place the FPM inside the box. If the deviation from either glideslope or course is too large, a flashing triangle (not shown) will appear indicating that a course/elevation change is required.
2. SYNTHETIC RUNWAY. The synthetic runway symbol is an aid for locating the real runway, especially during low visibility conditions. It is only visible when: a. The INS is on. b. The airport is the current fly-to waypoint. c. The runway data (heading and glideslope) were entered .
2 d. Both localizer and glideslope have been captured
Not functional at the moment, only possible by placing the “Landing” waypoint in the Mission Editor.
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Since when is the Mirage out of beta ? Since April 2017 !!!