I found a tricky solution for this problem.
It works only in case you open your galleries on separate pages.
You create:
Album A Outer which contains Gallery A
Album B Outer with Gallery B
Gallery a contains one picture, which is a thumbnail. This thumbnail will be displayed as a thumbnail of Album A.
This gallery links to a page, instead of displaying content of Gallery A, this page displays content of Album A (you need to henge it manually)
Same thing for Gallery B.
On the albums list page you display Album A Outer and Album B Outer.
Each one of them contains one gallery, so only two thumbnails are displayed and each thumbnail leads to it’s album.
Regards,
zelcrow
