To be able to use album parent child relationship you need to create custom template and display the albums base on parent using a custom wp_query.
This is for experienced theme developers, if you don’t understand templates maybe you guys can find someone to help you below some theme resources.
other resources:
From album to slideshow / custom link
Get post by custom taxonomy (ims_album)
WordPress query
gallery content type: ims_gallery
image content type: ims_image
album taxonomy: ims_album
tags taxonomy: ims_tags