BuddyPress.org

Sure it’s possible – but you’d have to code it yourself… 🙂 But to help you a bit:

Make the profile fields you want to have checked first, on where your members are located.

Otherwise, I think Buddypress has the possibility to loop through the xprofile fields – so something like this to gather your names for the mega menu (This is untested, so test it first before putting it on a production site)

<?php while ( bp_profile_fields() ) : bp_the_profile_field(); ?>
    <?php if ( bp_field_has_data() ) : ?>
        <?php if (bp_the_profile_field_name() == 'YOURFIELDNAME') && bp_the_profile_field_value() == 'checked'){
	//do something
    	}?>
     <?php endif; ?>
<?php endwhile; ?>

Gl