Having played around today with 3.9 (iOS), I do miss the Flight Details tab for 1-click access.

I use it quite a lot not just for W&B but also to set aircraft, set takeoff time, view flight time (on iPhone, though this is now on main map like on iPad so not an issue), and set fuel. I guess this is more important when planning than in flight.

For me, I liked the Flight Details tab. It provided essential functionality to get my work done. It's been replaced with the Warnings tab, which is pointless. Never gonna use it. You could have combined warnings somehow within Notams tab which are essentially warnings themselves. Pilots will always use Notams tab if they are sensible but likely ignore the Warnings tab because they include alerts about airspace etc (who cares, I planned the route so I should know which airspace is being used).

The issue seems to be within planning mode, where I need user friendly and consistent access to setting up my aircraft. I don't want to just have 1-click access to my fuel and W&B but still need to drill down many layers of menus to pick my aircraft. It should all be together. One without the other just wouldn't work. Additional touch is a huge deal.