Thanks Steve,
that seems to be the trick.

But since what version is this then?
I am pretty confused that this suddenly appears.

yes! thanks!!

this is a quick copy paste and seems to work:

piklist('field', array(
	'type' => 'group'
	,'label' => __('Address (Un-Grouped)', 'piklist-demo')
	,'description' => __('An Un-grouped field. Data is saved as individual meta and is searchable.', 'piklist-demo')
	,'fields' => array(

		array(
			'type' => 'text'
			,'field' => 'ungrouped_city'
			,'label' => __('City', 'piklist-demo')
			,'columns' => 6
		)
		,array(
			'type' => 'html'
			,'label' => __('Opleiding', 'piklist-demo')
			,'value' => "<button>X</button>"
		)

	)
	,'on_post_status' => array(
		'value' => 'lock'
	)
));

Hi Steve, yes all projects are just running without any problems, so no news for a long time

Here some code for the user-column:

// add extra column to users
//
add_filter( 'manage_users_columns', 'usersColumn' );
function usersColumn( $columns ) {

	$new = array();
	foreach ( $columns as $key => $title ) {
		if ( $key == 'posts' ) // Put the  column before this column
		{
			$new['quiz_count'] = 'Aantal lessen';
		}
		$new[ $key ] = $title;
	}

	unset( $new["posts"] );

	return $new;

}

// add value to the extra  vraag post_type column
//
add_filter( 'manage_users_custom_column', 'manage_users_custom_fields', 10, 3 );
function manage_users_custom_fields( $val, $column_name, $user_id ) {

	//$user = get_userdata( $user_id );
	switch ( $column_name ) {

		case 'quiz_count' :

			$args        = array(
				'posts_per_page'   => - 1,
				'offset'           => 0,
				'category'         => '',
				'category_name'    => '',
				'orderby'          => 'date',
				'order'            => 'DESC',
				'include'          => '',
				'exclude'          => '',
				'meta_key'         => '',
				'meta_value'       => '',
				'post_type'        => 'dquiz',
				'post_mime_type'   => '',
				'post_parent'      => '',
				'author'           => $user_id,
				'post_status'      => 'publish',
				'suppress_filters' => TRUE
			);
			$posts_array = get_posts( $args );

			return count( $posts_array );
			break;
		default:
	}

	return $val;
}

// Make it sortable
//
add_filter( 'manage_users_sortable_columns', 'users_sortable_column' );
function users_sortable_column( $columns ) {

	$columns['quiz_count'] = 'quiz_count';
	return $columns;
}

It creates the column, and makes it sortable.
I didnt post the actual ‘ordering’ query. But no need for this here.
It just didnt show any value, when the “show IDS” was enabled in the helpers-plugin.

Hi Steve,
thanks for your reply.
I am back at the ‘site’ and still have problems with this field.
(although i had it working with an older version)

I have updated to latest version today,
and have this piece of code

<?php
/*
  Title: Blokken
  Post Type: oquiz
  Order: 20

 */

piklist( 'field', array(
		'type'        => 'group',
		'label'       => 'Blok',
		'add_more'    => true,
		'description' => 'De quiz wordt onderverdeeld in aangemaakte blokken',
		'fields'      => array(

			array(
				'type'     => 'text',
				'field'    => 'blok_titel',
				'label'    => 'Blok Titel',
				'required' => true,
				'columns'  => 12
			),
			array(
				'type'    => 'textarea',
				'field'   => 'blok_introtext',
				'label'   => 'Blok introtext',
				'columns' => 12
			),
			array(
				'type'    => 'textarea',
				'field'   => 'blok_outrotext',
				'label'   => 'Blok outrotext',
				'columns' => 12
			),
			array(
				'type'     => 'group',
				'field'    => 'blok_vragen',
				'add_more' => true,
				'fields'   => array(
					array(
						'type'    => 'select',
						'field'   => 'vraag',
						'label'   => 'vraag',
						'choices' => get_questions(),
						'columns' => 12
					)
				)
			),
			array(
				'type'    => 'file',
				'field'   => 'blok_image',
				'label'   => __( 'Image', 'piklist-demo' ),
				'options' => array(
					'modal_title' => __( 'Add File(s)', 'piklist-demo' ),
					'button'      => __( 'Add', 'piklist-demo' )
				),
				'columns' => 12
			)

		)
	)
);

I am not able to save any entry now
When selecting one option from the dropdown,
after save, i have ‘0’ back as default

Any thoughts?
Suggestions?

Thanks Steve!