Im trying to integrate responsive filemanager to my tinymce and finally got most of it working except for the part where you can place a responsive filemanager inside tinymce's insert/edit image. the responsive filemanager button appears perfectly in my tinymce toolbar but not on the image below

the picture above is what shows when i click tinymce insert/edit image.
what i want to happen is for it to have a responsive filemanager button beside the source textbox like what can be found here
http://www.responsivefilemanager.com/demo.php
below is my code
script
var base = $("#base").val(); //base value is equal to <?php echo base_url();?>
tinymce.init({
selector: "textarea.mce",
theme: "modern",
image_advtab: true,
relative_urls:false,
plugins: [
"advlist autolink link image lists charmap print preview hr anchor pagebreak spellchecker",
"searchreplace wordcount visualblocks visualchars code fullscreen insertdatetime media nonbreaking",
"save table contextmenu directionality emoticons template paste textcolor responsivefilemanager"
],
content_css: "css/content.css",
toolbar: "insertfile undo redo | styleselect | bold italic | blockquote | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent | link image advimage media responsivefilemanager",
external_filemanager_path:base+"adminlibraries/js/ResponsiveFilemanager-master/filemanager/",
filemanager_title:"Responsive Filemanager" ,
external_plugins: { "filemanager" : ""+base+"/adminlibraries/js/ResponsiveFilemanager-master/filemanager/plugin.min.js"},
style_formats: [
{title: 'Bold text', inline: 'b'},
{title: 'Red text', inline: 'span', styles: {color: '#ff0000'}},
{title: 'Red header', block: 'h1', styles: {color: '#ff0000'}},
{title: 'Table styles'},
{title: 'Table row 1', selector: 'tr', classes: 'tablerow1'},
{title: 'Image Left', selector: 'img', styles: {
'float' : 'left',
'margin': '0 10px 0 10px'
}},
{title: 'Image Right', selector: 'img', styles: {
'float' : 'right',
'margin': '0 10px 0 10px'
}},
],
});
am i missing something?
thanks