@jrhooker said:

I have a step back version but it's a whole day of work.

 Because I often work on things where I'm pushing Isadora to the absolute limit, I've gotten into the habit of making incremental saves every hour or two. I rarely need them, but when I do, I'm very glad to have them.

@skuven thanks for adding your support and advise on the 3D route initially suggested by @woland. The incorporation of 3D elements within Isadora is not an area I'm particularly confident in. Any support / advice from the community would be much appreciated.

I've continued to work on my original file which now looks like so: scroll-txt-test.izz