Hello all.I have been trying to make a preset for Efis, without success...What I want is a trigger between local pressure and standard pressure, 29.92.the best I had was 26.62. Why??So, it was something like this=...........Not really that but i am not home: it's the idea.Thanks for contributions. Jean Claude

You can use KOHLSMAN SET to set the reference pressure directly. However the argument is 16* pressure in millibars so something like:<Click>16111 (>K:KOHLSMAN_SET)</Click> should set the preesure to reference pressure 29.92 inch hg (1013.2mb). With 0 (>K:BAROMETRIC) you can set to local pressure (ALT+B key kombination).Arne Bartels

Hello Arne Thank you for your fast answer. As usual you indicated the good path! In fact, it is necessary to understand that Microsoft wedged the " 0 " to " 27.815 ". To go to " 29.92 ", it is necessary to add 210.5 therefore. This gives 16*210.5. CQFD (Ce Qu'il Fallait D