Board Thread:Support Requests - Getting Technical/@comment-4627163-20161112180402/@comment-168424-20170317220035

I think the order of the categories as they appear is based on either where they appear on the page or in the category list in the sidebar. So, I'm not sure you can use a template to make the category appear last as it seems categories on the page always appear before manually added categories via CategorySelect in the sidebar in edit mode or at the bottom of the page.

A hacky solution might be to use Javascript to somehow move specific categories to the last position after the page is rendered. You could ask at Dev wiki if anyone could help do that or tell you how silly and crazy it is.