I have installed Galleria Image Gallery and Simple Image Gallery in my website successfully (as far as I can determine).

Whenever I add one of these galleries to a page however, the edit and dashboard buttons disappear. This prohibits further editing of the page.

I have seen some references that suggest adding a line like
<?php Loader::element('footer_required'); ?>
but I have no idea in which file(s) that should be added.

Would appreciate any help.