[wp-hackers] Custom Filters on wp-admin/users.php

[John Gadbois]

Is there any easy way to add a custom filter to users.php?  I don't see any
filters or actions that I can make use of.

The only way I can see that might work is to inject the filter dropdown I
want via javascript and then hook into the WP_User_Search call with some new
query var that indicates the filter I want to use.

Any other ideas or suggestions?