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How to Hide Advance Portfolio Grid Admin Menus

function plt_hide_advance_portfolio_grid_menus() {
	//Hide "Portfolio Grid".
	remove_menu_page('edit.php?post_type=wpb_fp_portfolio');
	//Hide "Portfolio Grid → All Portfolios".
	remove_submenu_page('edit.php?post_type=wpb_fp_portfolio', 'edit.php?post_type=wpb_fp_portfolio');
	//Hide "Portfolio Grid → Add New Portfolio".
	remove_submenu_page('edit.php?post_type=wpb_fp_portfolio', 'post-new.php?post_type=wpb_fp_portfolio');
	//Hide "Portfolio Grid → Portfolio Category".
	remove_submenu_page('edit.php?post_type=wpb_fp_portfolio', 'edit-tags.php?taxonomy=wpb_fp_portfolio_cat&post_type=wpb_fp_portfolio');
	//Hide "Portfolio Grid → Portfolio Settings".
	remove_submenu_page('edit.php?post_type=wpb_fp_portfolio', 'portfolio-settings');
}

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

Where do I put this code?

How to Hide Advance Portfolio Grid Meta Boxes

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

	//Hide the "Portfolio External link" meta box.
	remove_meta_box('wpb_fp_portfolio_ex_link', $screen->id, 'side');
	//Hide the "Pro version features" meta box.
	remove_meta_box('wpb_fp_portfolio_pro_add', $screen->id, 'normal');
}

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