I am working with the Gamma theme but I would like to implement the image slider from the Beta theme (big image slider with little image underneath it) to the Gamma theme.

Gamma only has the big image slider but I like the smaller images underneath it so you can see what photo's are already added and you can use the slider or click on the miny images.

Could someone who has the Beta theme slider share the code with the image slider with me?
So I could implement that into the Gamma theme?