What else can the Redirect Manager do?
That’s about it, at the moment - although there are some Pull Requests currently outstanding, some of which are available for testing in 3.4 beta - which will add some advanced features for SEO experts and improve the features already available:
Increase number of characters in URL to allow more than 255 characters View PR
Allow setting of custom http codes View PR
Batch process of new URLs (allows you to copy/paste a list of URLs into com_redirect) View PR
Is there something you would like to see the Redirect Manager do? Why not submit an issue at http://issues.joomla.org with a clear explanation of what you would like to be able to do, and maybe your wish could be granted :)