why a 2-column text flow?
A 1-column story that is flowing through one text frame per page could work best.
Provided the size of all the images is all equal:
It could be as easy as that:
1. Place an image to the pasteboard.
2. Resize the image.
3. Cut the image.
4. Paste the image to an insertion point of a text frame.
The images are flowing with the text. Like simple characters.
Line by line, two images per line, in one single paragraph throughout several pages.
But that's a solution for the most simplest layout, only.
To give further assistance, we need some screenshots from the OP.
It would be important to know, if the images are of equal size and if they are positioned equally relative to the spine or not.
And also: Are there any captions? Other text elements that divide the images from each other.
For posting screenshots use the forum's feature "Insert Image" at the tool bar:
As others have pointed out you can make Images flow with Text so as you add more text or Images the rest move... Which sort of accomplishes what you want and would be the best way to accomplish your end goal.
But in the method you describe of simply re flowing the images on their own without text, replacing/deleting the previous image or adding a new image frame... this cannot be done directly in this manner (currently).
There may be a time when this feature becomes automated but I don't know if or when that may ever happen. I would imagine it would require an altered version of the Content placer tool to create these special linked frames that allow reflow.
Thank you so much for your help so far. I would like to register that the images are in fact the same size, and essentially what I'm looking to do is have a grid flow from upper left to bottom right, and the bottom right would flow to the top left of the next page. I will try to take what you guys have mentioned and apply it (noob lol) and I will let you know if anything worked. Any other ideas you all might have in the meantime (and basic steps?) would be greatly appreciated guys.
Oh, I thought you were going from top to bottom first. Pardon!