Another item I didn't search to see if someone suggested it. It would be "nice" if we could have a button on the flight plan page to take us to a display of our route on a map and have the route line either green/orange/red to indicate where we would be below a given altitude above obstacles/terrain/Airspace, etc. We would be able to click on that part of the route and either drag it until it turned green, or change altitude. I would think that there would also be some kind of lateral clearance from the obstacles (1 mile, 2 miles, 5 miles?) We could also click and note that we're aware of the conflict and have otherwise resolved it. (SUA is cold, We're going to be on FF so will fly through the B/C/D airspace, etc.) Perhaps this map would have both our entire route on a sectional, and at the bottom the side view. We could click and drag for altitude changes in the side view.
Of course, this could be a lot more programming work than it's worth, but thought I'd throw it out there anyway.