Hi @majumps,
Seems that these links might help:
Image Gallery examples (my first try :) ) (3rd gallery type)
Adalo: Creating a Rotating Image Carousel or Gallery with Unlimited Images
As for the order: you may want to create an additional field of Single_Excersize_ID, make it numeric, put the IDs in order you want. If you use a temporary internal property for storing current ID, and change it +1 / -1 when pressing Next or Prev, you get the order.
This is what’s explained in 3rd gallery type example video.
You can also do that with the approach from 2nd video, I think.