Hi Mark,
Super excited about Redactor 3.
One thing I found so far, in the following toolbar configuration, the alignment button will always appear at the end of the buttons no matter where I put it in the list. Here’s my list:
format, divider, undo, redo, divider, bold, italic, underline, deleted, divider, ul, ol, alignment, divider, image, video, file, table, link, divider, line, divider, fullscreen, html