ModulePosition form field type
From Joomla! Documentation
Provides a text input and button to set the position of a module.
- type (mandatory) must be moduleposition.
- name (mandatory) is the unique name of the field.
- label (mandatory) (translatable) is the descriptive title of the field.
- description (optional) (translatable) is text that will be shown as a tooltip when the user moves the mouse over the drop-down box.
Example XML Definition
<field name="position" type="moduleposition" description="COM_MODULES_FIELD_POSITION_DESC" label="COM_MODULES_FIELD_POSITION_LABEL" default="" maxlength="50" />
If adding this field to a fieldset outside of the com_modules scope you will have to include addfieldpath="administrator/components/com_modules/models/fields" in your <fieldset> tag
<fieldset name="fieldsetname" label="myfield" addfieldpath="administrator/components/com_modules/models/fields" >
If set up properly, you will see a button displayed next to the textbox (with Joomla standard language text that you can set up to say what you wish in your language file) which when clicked, brings up the standard module position selection window you're used to seeing in the Module Manager.