Tips on Customizing Rusnet Interactive Map for Yandex Maps

How to Hide Rusnet Interactive Map for Yandex Maps Admin Menus

function plt_hide_rusnet_interactive_map_menus() {
	//Hide "Rusnet Map".
	remove_menu_page('rusnetim-options');

	//Hide "Markers".
	remove_menu_page('edit.php?post_type=rusnetim_marker');
	//Hide "Markers → Markers".
	remove_submenu_page('edit.php?post_type=rusnetim_marker', 'edit.php?post_type=rusnetim_marker');
	//Hide "Markers → Add New Marker".
	remove_submenu_page('edit.php?post_type=rusnetim_marker', 'post-new.php?post_type=rusnetim_marker');
	//Hide "Markers → Categories".
	remove_submenu_page('edit.php?post_type=rusnetim_marker', 'edit-tags.php?taxonomy=rusnetim_category&post_type=rusnetim_marker');
}

add_action('admin_menu', 'plt_hide_rusnet_interactive_map_menus', 21);

Where do I put this code?

How to Hide Rusnet Interactive Map for Yandex Maps Meta Boxes

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

	//Hide the "Coordinates" meta box.
	remove_meta_box('marker-coords', $screen->id, 'normal');
	//Hide the "Icon and Color" meta box.
	remove_meta_box('marker-icon', $screen->id, 'normal');
	//Hide the "Link" meta box.
	remove_meta_box('marker-url', $screen->id, 'normal');
	//Hide the "Image Gallery" meta box.
	remove_meta_box('marker-image', $screen->id, 'normal');
}

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