For now only particles, and materials are separate folders to import those. HDR suppose to work anywhere.
There are 2 possibilities:
- Have “multidirectory” - so then when addon se a blend file you will have to choose what to import/render. Material, collection/object, particle system. So probably it would end up in 3 different buttons.
- Have it as it is - so we can be (must be) nicely organized, but later during your regular workflow there would be only one button for it.
Of course this addon could go through each blend file and check what folders (obj,mat,particle sys) are inside and decide on that what to import, but now it only checks if the file exists. Few less steps.
Long story short: Except of materials and particle systems you can have it all in one directory.