Also i dont quite understand your forum post

If u want to take screenshot while using the aircraft then u can use a mod upload with screenshot

For forum:
-go to postimages.org
-post picture
-copy the markdown link with the cat, not reddit
-paste it to your forum post

For airplanes:
-when you press share aircraft theres a take button next to screenshot, press on it then choose an angle then press done, there ya go
(also theres a limit of 3)