Nebulae, Orion, making nebulae

[dusty leaf]

Hi, It's been a long time I wanted to ask communauty and devs about nebulae and modeling nebulae. Despite I read manual, I didn't well understood how to do to modify nebulae we can't select with nebulae editor, like Orion : is it by editing scripts ? I mean : basic i can't modify the orion nebula, but if i download an addon of this nebula, then i can modify it.

2 last questions : how to export/save edited nebulae ? sometimes nebulae I edited are disapearing from my game and it's boring considering the time spent on it.
Last one : Does anybody know a good simulation of Orion Nebula (I miss daniilmaks version!!) ??

[shell zephyr]

The Orion nebula is a "Real" object which means Space Engine has a script in the data directory that describes the object. To modify the object you'll have to make a script with

Nebula    "Orion Nebula"
{
    // your changes here
}

or, if you want to remove it entirely,

Remove    "Orion Nebula"

Edited objects aren't saved when you quit the game, but you can export them. For planets/stars/etc, you can do shift+F2 to open the editor and click "export script." I'm not sure how you do this with galaxies or nebulae but it should be in the manual

(And no I don't know of any good simulations of the Orion nebula :( )