Disabled Portfolio Category controls in Elementor

In the source ( power-ups-for-elementor/modules/portfolio/elementor/widgets/elemenfolio.php ) I see the following code:

		/*$this->add_control(
			'type',
			[
				'label' => __( 'Display specific portfolio category', 'elpug' ),
				'type' => Controls_Manager::SWITCHER,
				'default' => '',
				'label_on' => __( 'On', 'elpug' ),
				'label_off' => __( 'Off', 'elpug' ),
				'return_value' => 'yes',
			]
		);*/

		/*$portfolio_taxonomies = get_terms( array('taxonomy' => 'elemenfoliocategory', 'fields' => 'id=>name', 'hide_empty' => false, ) );

		$this->add_control(
			'taxonomy',
			[
				'label' => __( 'If yes, select wich portfolio category to show', 'elpug' ),
				'type' => Controls_Manager::SELECT,
				'default' => 'yes',
				'options' => $portfolio_taxonomies,
			]
		);*/

Which seems to hint at a feature I’d really like — having an Elementor Element just show one category of Portfolio items.

Is this feature non-working, or why is it commented out?

The page I need help with: [log in to see the link]