Tips on Customizing WP Symposium Pro Core

How to Hide WP Symposium Pro Core Admin Menus

function plt_hide_wp_symposium_pro_menus() {
	//Hide "WPS Pro".
	remove_menu_page('wps_pro');
	//Hide "WPS Pro → Release notes".
	remove_submenu_page('wps_pro', 'wps_pro_release_notes');
	//Hide "WPS Pro → Setup".
	remove_submenu_page('wps_pro', 'wps_pro_setup');
	//Hide "WPS Pro → Shortcodes".
	remove_submenu_page('wps_pro', 'wps_pro_shortcodes');
	//Hide "WPS Pro → Styles (BETA)".
	remove_submenu_page('wps_pro', 'wps_pro_styles');
	//Hide "WPS Pro → Licence".
	remove_submenu_page('wps_pro', 'wps_pro_licence');
	//Hide "WPS Pro → Translations".
	remove_submenu_page('wps_pro', 'wps_pro_translations');
}

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

Where do I put this code?

How to Hide WP Symposium Pro Core Meta Boxes

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

	//Hide the "Activity Details" meta box.
	remove_meta_box('activity_info_box', $screen->id, 'normal');
	//Hide the "wps_friendship" meta box.
	remove_meta_box('friendship_info_box', $screen->id, 'normal');
	//Hide the "Favourite Friend" meta box.
	remove_meta_box('favourite_friendship_info_box', $screen->id, 'normal');
	//Hide the "Alert Details" meta box.
	remove_meta_box('alerts_info_box', $screen->id, 'side');
	//Hide the "Post Details" meta box.
	remove_meta_box('forum_post_info_box', $screen->id, 'side');
}

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