Follow these steps to upload with screenshots
{ONLY FOR PC NOT MOBILE (I DON’T KNOW ABOUT MAC)}
STEP1)
Take screenshots you want to upload.
STEP2)
Open MS paint
STEP3)
After opening MS paint select Paste and then Paste from.
STEP4)
After selecting Paste from open the first screenshot you have captured and then resize it
STEP5)
Do the same with the other two Images. And then save the final result.
STEP6)
The above steps 4 and 5 will combine the three images into one.
STEP7)
Once all the above steps will be done open Simpleplanes and then press B this will open the blueprints panel select side view and then open image,
STEP8)
After opening the image enlarge it and drag it upward so that your creation doesn’t get in the way of the screenshot.
STEP9)
Open the Share Aircraft dialog box and then take the screenshots.
And you’re done.
Thank you for reading.

NOTE: While dragging the camera upwards make sure you do it with the right mouse button because if you do it with the left mouse button the screenshot will disappear**