Tips on Customizing WPFront User Role Editor

How to Hide WPFront User Role Editor Admin Menus

function plt_hide_wpfront_user_role_editor_menus() {
	//Hide "Users → Assign / Migrate".
	remove_submenu_page('users.php', 'wpfront-user-role-editor-assign-roles');

	//Hide "Roles".
	remove_menu_page('wpfront-user-role-editor-all-roles');
	//Hide "Roles → All Roles".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-all-roles');
	//Hide "Roles → Add New".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-add-new');
	//Hide "Roles → Restore".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-restore');
	//Hide "Roles → Login Redirect".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-login-redirect');
	//Hide "Roles → Post Types".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-post-types');
	//Hide "Roles → Taxonomies".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-taxonomies');
	//Hide "Roles → Bulk Edit".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-bulk-edit');
	//Hide "Roles → Settings".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor');
	//Hide "Roles → Go Pro".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-go-pro');
}

add_action('admin_menu', 'plt_hide_wpfront_user_role_editor_menus', 1001);

Where do I put this code?

How to Hide the "Role PermissionsUpgrade to PRO Help" Meta Box

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

	//Hide the "Role PermissionsUpgrade to PRO Help" meta box.
	remove_meta_box('wpfront-user-role-editor-role-permissions', $screen->id, 'advanced');
}

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