Terrain awareness suggestions

Ive had a quick look at the terrain awareness although haven't flown with it yet. It looks good but people will need to be very careful and treat the terrain model as approximate only and supervise flights with caution.  I've seen some very large errors in this terrain model.

in other mapping software we use for other drones we have the ability to load our own geotiff terrain model.  It would be fantastic if you could consider this with your software because then we could load our own site specific terrain.

one other suggestion is to incorporate a simple line of sight bounding box based on take off position, flying height and terrain.  This should be easy to implement and would be a very helpful tool to assist flight planning. Of course local terrain will have a big impact on visibility including trees and buildings etc.