Hudl2 gallery?

I have a collection of art tuition video’s of various ‘wet on wet’ oil painting artists . I made folders on my PC naming each by artist. Each folder has four video’s. I load one of six folders on to the hudl2 and checked the gallery hoping the name artist folder would be showing then click the folder to see the four video’s…..no! the artist folder shows with name and four video’s at the side of the artists folder, not in it.
The Idea is to just see in Gallery the artist’s folder and click on the artist’s folder to view the video’s. I’ve tried putting each of the four video’s in to its own folder with in the artist folder each being named by its subject that’s fine all named but again all outside the artists folder when I check the Hudl2 gallery…any idea’s what I am doing wrong.
Many thanks