Ive been trying to get the ABC to show in widgets but it seems to be missing or I'm stupid enough to not see where it is
This is on the product page

Aviator, its weir, i know and that widget in particular is what i really need
This is a poor decision by Garmin, on multiple levels. This ABC widget is widely available to use on other lesser watches (including the Fenix 5 and 5 plus), and I’ve noticed that the same restriction…
Are you able to save your compass heading?
YD, after looking into this, it turns out the ABC widget is intentionally not added to the MARQ Aviator. Instead, the MARQ Aviator has a dedicated aviation altimeter page, as well as the HSI Compass (Horizontal Situation Indicator Compass) the other MARQs lack. This is the case with all Garmin aviation watches.
This is a poor decision by Garmin, on multiple levels. This ABC widget is widely available to use on other lesser watches (including the Fenix 5 and 5 plus), and I’ve noticed that the same restriction appears on the Garmin ‘Tides’ widget — available for the Fenix 5/5 plus, but only available for the MARQ captain and designated “incompatible” with the MARQ aviator. You cannot expect customers to pay >2x the money for exclusivity, only to restrict the MARQ model from widgets/features that appear to be freely available for older/lesser Garmin watches. That is a sure fire way to alienate your loyal fan base (who is also likely the base spending the most money as customers).