Tips on Customizing WP Real Estate

How to Hide WP Real Estate Admin Menus

function plt_hide_wp_real_estate_menus() {
	//Hide "Listings".
	remove_menu_page('edit.php?post_type=listing');
	//Hide "Listings → Listings".
	remove_submenu_page('edit.php?post_type=listing', 'edit.php?post_type=listing');
	//Hide "Listings → New Listing".
	remove_submenu_page('edit.php?post_type=listing', 'post-new.php?post_type=listing');
	//Hide "Listings → Listing Type".
	remove_submenu_page('edit.php?post_type=listing', 'edit-tags.php?taxonomy=listing-type&post_type=listing');
	//Hide "Listings → Agents".
	remove_submenu_page('edit.php?post_type=listing', 'users.php?role=wre_agent');
	//Hide "Listings → Enquiries".
	remove_submenu_page('edit.php?post_type=listing', 'edit.php?post_type=listing-enquiry');
	//Hide "Listings → Import IDX Listings".
	remove_submenu_page('edit.php?post_type=listing', 'wre-idx-listing');
	//Hide "Listings → WRE Settings".
	remove_submenu_page('edit.php?post_type=listing', 'wre_options');
}

add_action('admin_menu', 'plt_hide_wp_real_estate_menus', 13);

Where do I put this code?

How to Hide WP Real Estate Meta Boxes

function plt_hide_wp_real_estate_metaboxes() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Hide the "Listing Description" meta box.
	remove_meta_box('_wre_listing_description', $screen->id, 'normal');
	//Hide the "Listing Details" meta box.
	remove_meta_box('_wre_listing_details', $screen->id, 'normal');
	//Hide the "Listing Features" meta box.
	remove_meta_box('_wre_listing_features', $screen->id, 'normal');
	//Hide the "Images" meta box.
	remove_meta_box('_wre_listing_images', $screen->id, 'normal');
	//Hide the "Listing Status" meta box.
	remove_meta_box('_wre_listing_status', $screen->id, 'side');
	//Hide the "Listing Address" meta box.
	remove_meta_box('_wre_listing_address', $screen->id, 'side');
	//Hide the "Listing Settings" meta box.
	remove_meta_box('_wre_listing_settings', $screen->id, 'side');
	//Hide the "Open For Inspection" meta box.
	remove_meta_box('_wre_listing_open', $screen->id, 'side');
	//Hide the "Contact Form" meta box.
	remove_meta_box('wre_contact_form', $screen->id, 'normal');
}

add_action('add_meta_boxes', 'plt_hide_wp_real_estate_metaboxes', 20);