WYSIWYG with CK editor Profiles
You can do that with Firebug or any other browser that has a console. You need to go to edit page of the WYSIWYG profile and on this page, open Firebug or your browser's web developer tool. And in the console enter this line and run:

jQuery('#edit-buttons input.form-checkbox').attr('checked', 'checked');


This will set all the checkboxes under 'Edit buttons' section and you can save your setings.