I am making gallery for 3D rendered pictures. So, in first thumbnail I have rendered one boy, in the second thumbnail a bear. The problem is that I want to show 7 rendered jpgs of the boy, but I don't want to have 7 different thumbnails for this. When you click the thumbnail for the boy, to load all the boy's jpgs that are in the folder, in same way with the crocodile.
I hope you understand what I mean.
How can I do this, because the other boy's rendered jpgs are in folder, they are not included in the code. How can I link them, to this thumbnail? Do I have to include them in the code and make them hidden?