Change default image of a chamber? I need Help

[ikikomori]

How Can I do it? I can add more images, but I dont know how change the default image. I`ve been looking for but nothing found.

[| \_/ ()]

when you edit your chamber, turn it around like you want and THEN click save. RIGHT after that exit the editor and there - we'll see it just like you put it.
if you have stylemod i think you can't change it - it's gonna show how you enter the chamber when play-testing.

[ikikomori]

But can I modified this image with photoshop and then add like a default image?