Custom Taxonomy Sort allows you to explicitly control the sort order of all taxonomy terms.
After installing the plugin, all taxonomies will be automatically sorted by your custom order; however, you need to vist the individual taxonomy term edit pages to enter the order of the terms.
"Automatic Sort" has two states: "On" (default) and "Off". When "Autmatic Sort" is set to "On", every call to "get_terms" will be sorted by the custom sort order. In this mode, you do not have to manually add parameters to the "get_terms" function calls to have the terms sorted by the custom sort order. You can think of the "On" state as allowing the plugin to do everything for you; all you need to do is tell it in what order you want the terms to be sorted. On the other hand, if you set "Automatic Sort" to "Off", you need to manually send parameters to the "get_terms" functions in order for the terms to be sorted by the custom sort order. The "Off" mode is best for developers who want absolute control over every time the terms are sorted and displayed.
"Sort Order" is the order in which the terms are sorted. "Ascending" will sort the terms from lowest to highest value (e.g., 1, 2, 3). "Descending" will sort the terms from highest to lowest value (e.g., 3, 2, 1).