Tips on Customizing ShMapper by Teplitsa

How to Hide ShMapper by Teplitsa Admin Menus

function plt_hide_shmapper_by_teplitsa_menus() {
	//Hide "Shmapper".
	remove_menu_page('shm_page');
	//Hide "Shmapper → Shmapper".
	remove_submenu_page('shm_page', 'shm_page');
	//Hide "Shmapper → all Maps".
	remove_submenu_page('shm_page', 'edit.php?post_type=shm_map');
	//Hide "Shmapper → all Map markers".
	remove_submenu_page('shm_page', 'edit.php?post_type=shm_point');
	//Hide "Shmapper → All Map marker messages".
	remove_submenu_page('shm_page', 'edit.php?post_type=shm_point_msg');
	//Hide "Shmapper → all Map Requests".
	remove_submenu_page('shm_page', 'edit.php?post_type=shm_request');
	//Hide "Shmapper → All Map tracks".
	remove_submenu_page('shm_page', 'edit.php?post_type=shmapper_track');
	//Hide "Shmapper → Map track types".
	remove_submenu_page('shm_page', 'edit-tags.php?taxonomy=shmapper_track_type');
	//Hide "Shmapper → Map marker types".
	remove_submenu_page('shm_page', 'edit-tags.php?taxonomy=shm_point_type');
	//Hide "Shmapper → Settings".
	remove_submenu_page('shm_page', 'shm_settings_page');
}

add_action('admin_menu', 'plt_hide_shmapper_by_teplitsa_menus', 100);

Where do I put this code?

How to Hide ShMapper by Teplitsa Meta Boxes

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

	//Hide the "Parameters" meta box.
	remove_meta_box('extra_fields', $screen->id, 'normal');
	//Hide the "Step 1. Set up your map." meta box.
	remove_meta_box('map_fields', $screen->id, 'normal');
	//Hide the "Step 2. May anover Users add information for Map." meta box.
	remove_meta_box('form_fields', $screen->id, 'normal');
	//Hide the "Including Map to post" meta box.
	remove_meta_box('shortcode_fields', $screen->id, 'side');
	//Hide the "Map owner" meta box.
	remove_meta_box('owner_fields', $screen->id, 'side');
}

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