In order to use an editor, you need to:
- Include the editor script (usually you put the javascript file(s) between the <head> tags).
- 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:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CKEditor</title>
<script src="https://cdn.ckeditor.com/4.15.0/standard/ckeditor.js"></script>
</head>
<body>
<textarea name="editor1"></textarea>
<script>
CKEDITOR.replace( 'editor1' );
</script>
</body>
</html>
