Dear Xara...

I managed to Anchor 22 images to Text.
I then stacked them together with Object Alignment.

Bug - If I then move the anchoring Text, thee images distribute vertically to a height of 826px; they were all 256px square.

Anchoring wraps each image in a xr_group class. This is very useful in setting up simpler JS code for carousels.

Acorn