Elevation Data preflight check

Is it possible to add a preflight check button in the Flight Plan to give a warning if any part of the flight is below the elevation data?

Recently we had an issue where absolute altitude was accidentally used or somehow sent as the elevation data for a flight plan when relative should have been used. Luckily it did not result in a crash as the behavior was noticed and switched to manual mode, however, is it possible to add a preflight check or warning if mission planner notices something like this? Also, maybe any other warnings for things that could result in mission failure?

Thank you

The issue does not name any files, tests, or entry points. Start by locating the Flight Plan mission validation flow and elevation-data handling, then define the scope and completion criteria for a preflight warning system before implementation.

Written by the indexing model from the issue text.