Image folder

This is a basic question, I know, but most of the forums skip over this part--how do I create an image folder, which I can draw from to add images to Simple Pages? Is it different than adding new items to the archive?

If you are talking about separate images that don't need to be added to the archive, then it would probably be easiest to create a new folder in the archive directory and upload the files you need there

Yes, I am. These aren't images that need to be searchable by visitors to the site. So, how do I add new folders?

You should be able to do that either in a cPanel screen, under the file manager, or if you create it on your computer and add the files you should be able to upload them the same way you would any other file