Tips on Customizing LastLittleThing Review Manager (LLTRM)

How to Hide LastLittleThing Review Manager (LLTRM) Admin Menus

function plt_hide_lastlittlething_review_manager_menus() {
	//Hide "LLTRM".
	remove_menu_page('lltrm-dashboard');
	//Hide "LLTRM → All Projects".
	remove_submenu_page('lltrm-dashboard', 'edit.php?post_type=lltrm_review_project');
	//Hide "LLTRM → New Project".
	remove_submenu_page('lltrm-dashboard', 'lltrm-new-project');
	//Hide "LLTRM → Settings".
	remove_submenu_page('lltrm-dashboard', 'lltrm-settings');
	//Hide "LLTRM → Upgrade".
	remove_submenu_page('lltrm-dashboard', 'lltrm-pro');
	//Hide "LLTRM → Help".
	remove_submenu_page('lltrm-dashboard', 'lltrm-help');
}

add_action('admin_menu', 'plt_hide_lastlittlething_review_manager_menus', 1000);

Where do I put this code?

How to Hide the "Project Versions" Meta Box

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

	//Hide the "Project Versions" meta box.
	remove_meta_box('lltrm_project_main_interface', $screen->id, 'normal');
}

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