impossibel

in the designer, click the button with 3 lines on the top right which opens a menu
then select "Share Aircraft" on the very top
this opens the upload menu
you need to have a title, sign your account in, and picture of your build to upload

You cant

@Graingy indeed there is

There’s literally a button for it

Thx

Within SimplePlanes itself (not the website) go into the designer and load your craft. Then in the side menu it should have a blue rectangle that says “Share” (or something like that). Press this button and then fill in the boxes for a title and description. Then upload it from this menu!