php - Adding oembed plugin to 2amigos ckeditor widget in yii2 -

i'm trying add oembed plugin ckeditor via 2amigos widget yii2.

i did following, can't seem button appear:

1. i downloaded , copied oembed , widget plugins ckeditor plugins folder

2. i set clientoptions widget in form using code below:

   $form->field($thecomment, 'comment')->widget(ckeditor::classname(), [     'clientoptions' => ['config.extraplugins' => 'widget,oembed'],     'options' => ['rows' => 6],     'preset' => 'full' ]) 

3. i altered full.php preset filworkinge adding following lines of code below:

   'toolbargroups' => [     ['name' => 'document', 'groups' => ['mode', 'document', 'doctools']],     ['name' => 'clipboard', 'groups' => ['clipboard', 'undo']],     ['name' => 'editing', 'groups' => [ 'find', 'selection', 'spellchecker']],     ['name' => 'forms'],     '/',     ['name' => 'basicstyles', 'groups' => ['basicstyles', 'colors','cleanup']],     ['name' => 'paragraph', 'groups' => [ 'list', 'indent', 'blocks', 'align', 'bidi' ]],     ['name' => 'links'],     ['name' => 'insert'],     '/',     ['name' => 'styles'],     ['name' => 'blocks'],     ['name' => 'colors'],     ['name' => 'tools'],     ['name' => 'others'],     '/',            //added me     ['name' => 'oembed'],   //added me ], 

not entirely sure if error in edit clientoptions, or in edit toolbargroups, or both!. thoughts on i'm doing wrong appreciated.

thanks!

plugin add in assets folder (example plugin spoiler) zarnica.dev\www\assets\dff59c5c\plugins\spoiler

<script>ckeditor.config.extraplugins = 'spoiler';</script> 

done!