Tips on Customizing Hash Form – Drag & Drop Form Builder

How to Hide Hash Form - Drag & Drop Form Builder Admin Menus

function plt_hide_hash_form_menus() {
	//Hide "Hash Form".
	remove_menu_page('hashform');
	//Hide "Hash Form → Forms".
	remove_submenu_page('hashform', 'hashform');
	//Hide "Hash Form → Styles".
	remove_submenu_page('hashform', 'edit.php?post_type=hashform-styles');
	//Hide "Hash Form → Entries".
	remove_submenu_page('hashform', 'hashform-entries');
	//Hide "Hash Form → SMTP".
	remove_submenu_page('hashform', 'hashform-smtp');
	//Hide "Hash Form → Settings".
	remove_submenu_page('hashform', 'hashform-settings');
	//Hide "Hash Form → Documentation".
	remove_submenu_page('hashform', 'https://hashthemes.com/documentation/hash-form-drag-and-drop-form-builder-documentation');
}

add_action('admin_menu', 'plt_hide_hash_form_menus', 46);

Where do I put this code?

How to Hide the "Hash Form Styles" Meta Box

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

	//Hide the "Hash Form Styles" meta box.
	remove_meta_box('hashform-styles-metabox', $screen->id, 'advanced');
}

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