In extension/ezwebin/design/ezwebin/templates/parts/editor_toolbar.tpl
There is a list of hardcoded values:

{if array( 'documentation_page', 'folder', 'article', 'event' )|contains( $current_node.class_identifier )} {set $disable_oo=false()} {/if}

It's better to read this list from a configuration file.
Thanks.