One of my clients drew my attention to the fact that it isn't possible anymore to set (or edit) margins (hspace, vspace) on inserted images in tiny mce like in SS3.0
Found someting in tinymce's options, but adding this to my _config.php doesn't help either :
HtmlEditorConfig::get('cms')->setOption('image_advtab', 'true');
Can anybody help me to get this functionality back?