This options will only show in every "Concept" Page Templates.
Concept Album Select allow you to pick which album you want to show on the concept page. In this way you could have different concept for different album.
You can read each concept template rules to show album post on each page. Not all concept can show all of album post list. Like concept 10 (Multiscroll Concept) need even item number like 2, 4, 6 and so on to work.