In order to use an editor, you need to:
- Your field (here in this case is the textarea field) must contain ID and name values.
- Another script to "connect" the field' ID with the editor.
Q2A editors, by default, only works if your field contains id="content" name="content"
If your plugin's field isn't "content". You have to make a custom script to "connect" the editor and the field ID.
I once used original CKeditor 4 scripts (downloaded from CKeditor website), and one of the scripts will let you define which textarea field can be integrated with CKeditor.
The easiest trick:
CKEDITOR.replace( 'editor1' );