How to Hide ReelsWp - Shoppable Videos & Vertical Reels Carousels Admin Menus

function plt_hide_ecomm_reels_menus() {
	//Hide "ReelsWP".
	remove_menu_page('reels-wp-groups');
	//Hide "ReelsWP → All Widgets".
	remove_submenu_page('reels-wp-groups', 'reels-wp-groups');
	//Hide "ReelsWP → Create Widget".
	remove_submenu_page('reels-wp-groups', 'reels-wp-groups#/?view=manage-group');
	//Hide "ReelsWP → All Reels".
	remove_submenu_page('reels-wp-groups', 'reels-wp-groups#/?view=all-reels');
	//Hide "ReelsWP → Settings".
	remove_submenu_page('reels-wp-groups', 'reels-wp-groups#/?view=settings');
}

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

Where do I put this code?