[Plugin: Google Analyticator] Feature Request (Add hook to add extra code)

I notice from the code that the plugin can have “extra” Google Analytics code added (Presumably via the config page of the plugin?).

E.g.

# Add any tracking code before the trackPageview
    if ( '' != $extra )
        echo "  $extra\n";

However, what I’d like to be able to do is add extra code via a plugin. Would it be possible to add a hook in here that other plugins can use to insert additional Google Analytics code (For example segmentation data via _setVar).

Something like
do_action('google_analyticator_extra_js');

https://www.ads-software.com/extend/plugins/google-analyticator/