align_image_stack Documentation

I am using align_image_stack to align 2 images for processing into a 3D image.
There is documentation https://wiki.panotools.org/Align_image_stack but the page states that “This article is incomplete. You can help Panotools Wiki by expanding it.”

The descriptions are brief and I’m not sure I completely understand them all. It is not clear which options are mutually exclusive.
I’ve drawn up another table with (speculative) explanations to that table and below it added another with speculations about the relationships between the parameters. I would appreciate having explanations added where they are missing and errors corrected.

I cannot find an active forum on align-image-stack. Is there anywhere on this site I could post my tables? Alternatively could anyone recommend a forum?

If I get some clear answers, they could be useful for updating the wiki page.