The Sorters allow you to manage the order in which the content is displayed. Common sorting methods include “Field (Alphabetical)”, “Title (Alphabetical)”, and “Field (Date)”.
If you wish to manually manage the order of the content in your list, select the method “Nodequeue Order”. You will then need to specify a Queue and a Subqueue. These will usually be “Content Group Queue” and a taxonomy term that you have previously created. You can then read the article Working with nodequeues for details on how to manage content in a nodequeue.