Tips on Customizing LuckyWP Glossary

How to Hide LuckyWP Glossary Admin Menus

function plt_hide_luckywp_glossary_menus() {
	//Hide "Glossary".
	remove_menu_page('edit.php?post_type=lwpgls_term');
	//Hide "Glossary → All Terms".
	remove_submenu_page('edit.php?post_type=lwpgls_term', 'edit.php?post_type=lwpgls_term');
	//Hide "Glossary → Add New Term".
	remove_submenu_page('edit.php?post_type=lwpgls_term', 'post-new.php?post_type=lwpgls_term');
	//Hide "Glossary → Settings".
	remove_submenu_page('edit.php?post_type=lwpgls_term', 'lwpgls_settings');
}

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

Where do I put this code?

How to Hide the "Synonyms" Meta Box

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

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

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