Here is part my wishlist related to Scenery editing.
1. What: Live aerial image reloading, while the sim is running, like other scenery objects. Why: Color-correcting and other work has to be done currently with QGIS&tiles2bing loop outside the sim. Having to restart sim after every change is bad.
2. What: More flexible Water color adjusting. Why: Color seems to be always based on default aerial imagery's color. For example, let's say a lake is divided in 2 by separate photos. You cannot match the color by creating your own aerial/texture. Even if the area beneath the water polygon you're trying to create, by default, was not recognized as water. Example this lake right next to the airfield
https://flightsim.to/file/95724/ng-wazi-airport-htor-tanzania
3. What: Ability to work more on Photogrammetry Why: In some areas, like on aerodomes I like to work on, it causes massive issues with working on terraforming. For example a rectangle/polygon based "disable PG here" option would be nice. And a possibility to snapshot PG data to be saved with scenery. In this scenery of mine, weird squares appear on the surface with PG enabled, which I don't know to fix.
https://flightsim.to/file/98890/dome-de-la-lauze-altisurface-lf3823-france
4. What: More GUI features to get rid off text file editing. Why: For example, adjusting Worldscript waypoints and ground services requires editing outside the sim.
5. What: Improved Terraforming tool. Why: Mesh editing in GUI is difficult. It would be nice to have a "snapshot this area" DEM feature for terraforming tool. It could make the lowest elevation in grid as "0" baseline and adjust the XY-grid's elevations based on grid square's average elevation, for example.
6. What: Added Runway options for flexibility. Why: For example, if you choose runway edge lines, you cannot set runway textures to extend x metres from the edgeline - you have to create a polygon or something beneath the runway which is bad. Also the hardcoded 3000 foot limitation for touchdown zone markings, among others, could be adjustable.
7. What: Snow generation algorithm changes. Why: In this another scene of mine, the helipad area on the mountains is always covered in show even in summer & any set temperature. This is not good obviously.
https://flightsim.to/file/55311/scar-creek-airfield-cba7 LatLong 51.373748 -125.164212 altitude above ellipsoid 2702m. Perhaps tune settings and/or add an "exclude from snow during following months" option to a polygon or something? A "snow depth" setting would be cool as well.
8. What: Tree generation fix. Why: Some (tree object?) trees seem to always spawn in same location despite trying to remove them
https://www.fsdeveloper.com/forum/threads/removal-of-unwanted-trees-fs24.460193/
9. What: Option to disable/remove/adjust autogenerated grass. Why: Some areas like this bushstrip area annoying to work, because you can't tune the grass
https://flightsim.to/file/96180/tsar-mountain-airfield-british-columbia-bc-canada In this case I'd like to remove grass altogether, but some other times lenght and color would need to be tuned.
10. What: Ability to add (simple) sound effects to scenery and and triggers to them (in GUI or by external file editing). Why: Added immersion.
11. What: Ability to trigger animations in Avatar mode. Why: It would be cool to control opening hangars and stuff like that in game.
12. What: Ability to control scenery functions on EFB, for example. Why: Controlling runways lights, visibility of certain scenery elements and so on. Adds immersion.
13. What: Ability to spawn Simobjects/Worldscripts based on certain automatic triggers. Why: Related to 12, but without user interaction.
14. What: Ability to set Natural LandmarkLocation objects visible during flight. Why: Splitting hairs here, but I'd like sotimes to have an option to use Natural instead if POI.
15. What: Ability to prevent lights from passing solid objects. Why: Placing emitters is difficult, because lights don't care about surfaces. For example in this scene above the small door
https://flightsim.to/file/97042/cirque-airstrip-galore-creek-british-columbia-bc-canada You can also see the light above the large door passing though.
16. What: Ability to adjust traffic. Why: It would be cool to adjust routes, density, speed and so on manually. Also add a "pedestrian traffic" option.
17. What: Ability to remove (OSM?) based roads easily from view. Why: Roads seem to rendered on top of aerial images. I've only managed to remove the roads with transparent textured polygon, which isn't an ideal solution.
18. What: Ability to fix water elevation easily. Why: Water bodies' profiles are horrible in certain places. There's even a massive hill on river next to LFPO. Perhaps add a similar tool such as the runway profile editor for water.
19. What: Feature to add grass / shrub / bushes with polygons. Why: Now only trees are possible.
20. What: Improments to snap-to-ground option. Why: On photogrammetry areas, the feature doesn't seem to work. Also, when theres like 1 metre of snow cover, for example, (scenery) objects stick to ground instead of snow.
Cross-SDK compatibility could be better. You'll probably publish FS2x at some point. It would be great to be able to edit projects, created in the newer sim, back in FS24. If it is somehow possible to enable editing projects across sims, it would make life a lot easier.
Aerials: There should be a tool for creating source files instead of having to rely in tiles2bing. Even better, a QGIS plugin would be great. b) Simplygon plugin, or it's counterpart, should be supplied for Blender. c) It would be nice of the Blender plugin worked in current 4.x version, as it has more plugins.