In our project we use image atlases each with 150+ images. Importing all these image files into the EE2 project is a really time consuming task if you want to change all those for example to exclude mipmaps.
I suggest allowing to edit these things in batches selecting multiple objects at once and changing a setting for all of them. Quite necessary when you need to change 1000+ files.

Hi,

Thanks for your feedback, I've added this to the roadmap:
•more methods for Editor Network Interface (modifying existing world objects, controlling mip-map creation for images)

I have just noticed that disabling the mipmaps for images in an ImageAtlas did not reduce its size. Around 200 images in there. Yes, I recreated the image atlas after I changed all the images.
Maybe mipmaps are never used there? No problem for me, would just like to be sure.

Hi,
Image atlas creates mip maps independently on its own.
I'll add an option to control creation of mip maps for Image Atlas from the editor.

Excellent. I'm looking forward to that.