Hey,
so you have a dynamic page correct, and to that page you have associated a dataset, which is connected to your collection. In this collection I have several entries for photos, which I named: foto_1; foto_2… etc
in the gallery properties, you need to conect it to your dataset. The image sources is defined by the code.
After this, it should work… I’m sorry I cannot explain myself better…
Good luck,
Aldino