Tips on Customizing ImageMapper

How to Hide ImageMapper Admin Menus

function plt_hide_imagemapper_menus() {
	//Hide "Image maps".
	remove_menu_page('edit.php?post_type=imagemap');
	//Hide "Image maps → All Image maps".
	remove_submenu_page('edit.php?post_type=imagemap', 'edit.php?post_type=imagemap');
	//Hide "Image maps → Add new Image map".
	remove_submenu_page('edit.php?post_type=imagemap', 'post-new.php?post_type=imagemap');
	//Hide "Image maps → Image map settings".
	remove_submenu_page('edit.php?post_type=imagemap', 'imagemap-settings');

	//Hide "Image map areas".
	remove_menu_page('edit.php?post_type=imagemap_area');
	//Hide "Image map areas → All Image map areas".
	remove_submenu_page('edit.php?post_type=imagemap_area', 'edit.php?post_type=imagemap_area');
	//Hide "Image map areas → Add new Image map area".
	remove_submenu_page('edit.php?post_type=imagemap_area', 'post-new.php?post_type=imagemap_area');
	//Hide "Image map areas → Highlight styles".
	remove_submenu_page('edit.php?post_type=imagemap_area', 'imagemap-area-styles');
}

add_action('admin_menu', 'plt_hide_imagemapper_menus', 11);

Where do I put this code?

How to Hide ImageMapper Meta Boxes

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

	//Hide the "Image" meta box.
	remove_meta_box('imagemap-image-container', $screen->id, 'normal');
	//Hide the "Add area" meta box.
	remove_meta_box('imagemap-addarea', $screen->id, 'side');
	//Hide the "Areas" meta box.
	remove_meta_box('imagemap-areas', $screen->id, 'side');
	//Hide the "Highlight" meta box.
	remove_meta_box('imagemap-area-highlight', $screen->id, 'side');
	//Hide the "Settings" meta box.
	remove_meta_box('imagemap-area-settings', $screen->id, 'side');
	//Hide the "Mouse event" meta box.
	remove_meta_box('imagemap-area-types', $screen->id, 'normal');
}

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