Add search to Trusted Hosts screen on Greylisting

As a sysadmin using actively the Greylisting screens, having a search field in the Trusted Hosts section would be helpful to do a quick check and see if an IP is already whitelisted or not, and what the comments are.

Can you please take this into consideration? As an usability advocate I have to recall the fact that any list which may grow to hundreds of pages needs always to provide a filter or search feature for ease of use and better readability.

Thanks in advance!