This should give you a good idea on how to extend Mojo Mail's admin area to do.... anything
There is an example on how to make the actual admin screen + script, it's called
boilerplate_plugin.cgi
and should be located in the mojo/extras/scripts/ directory It should work right out of the box, upload it, chmod 755 it and follow the next set of directions to make it work
You'll need to tweak the $ADMIN_MENU variable in the Config.pm file, $ADMIN_MENU is a reference to an array of hashes of an array of hashes, or somewhere in there.
Follow the pattern :)
Adding this right after the last array ref entry:
{-Title => 'Boilder Plate Example', -Title_URL => "plugins/boilerplate_plugin.cgi", -Function => 'boilderplate', -Activated => 1, },
will do the trick, as long as you uploaded B<boilderplate_admin_module.cgi> in the same directory as mojo.cgi. It's better to give the absolute URL for these things, I think. Upload the revised Config.pm file and there should be a link for this very module. Pretty frickin cool, eh?