Joomla plugins Form Field Type
The plugins form field type provides a dropdown list of plugins from the specified folder (type of plugin). This field extends the list field type.
XML Field Definition
<field name="editor"
type="plugins"
folder="editors"
description="COM_USERS_USER_FIELD_EDITOR_DESC"
label="COM_USERS_USER_FIELD_EDITOR_LABEL" >
<option value="">JOPTION_USE_DEFAULT</option>
</field>
Additional Parameters
folder: (mandatory) It is the path to folder for plugins. For example, editors or captcha.