you can use both:
ctrl+g to specify a line number and jump to it, no command line that i know of...
if you know your way in basic python i guess it could be a breeze to set such plugin
use alt+f3, and f3 to cycle through the results. no sticky highlight yet though ( jon, please... )
Preferences\User File Preferences, add and edit the following:
btw, read Preferences\Default File Preferences for a complete list of all you can change.