functions.php

<?php
if ( class_exists( 'Theme_Blvd_Options_Page' ) ) { 
	class My_Options_Page extends Theme_Blvd_Options_Page {

		/**
		 * This method needs to be overwritten because
		 * the parent class uses add_theme_page() which
		 * can only add pages as subpages to the
		 * Appearance menu.
		 */
		public function add_page() {

			/* @link https://codex.wordpress.org/Administration_Menus */

			$admin_page = add_menu_page(
				$this->args['page_title'],
				$this->args['menu_title'],
				$this->args['cap'],
				$this->args['menu_slug'],
				array( $this, 'admin_page' )
			);

			add_action(
				'admin_print_styles-' . $admin_page,
				array( $this, 'load_styles' )
			);

			add_action(
				'admin_print_scripts-' . $admin_page,
				array( $this, 'load_scripts' )
			);

		}
	}
}

function my_setup_options_page() {

	if ( ! class_exists( 'My_Options_Page' ) ) {
		return;
	}
	
	$options = array(
		array(
			'name' => 'Tab #1',
			'type' => 'heading',
		),
		array(
			'name' => 'Section A',
			'type' => 'section_start',
		),
		array(
			'name'      => 'Option #1',
			'desc'      => 'This is the description for the first option.',
			'id'        => 'my_option_1',
			'std'       => 'default value for option #1',
			'type'      => 'text',
		),
		array(
			'name'      => 'Option #2',
			'desc'      => 'This is the description for the second option.',
			'id'        => 'my_option_2',
			'std'       => 'default value for option #2',
			'type'      => 'textarea',
		),
		array(
			'name'      => 'Option #3',
			'desc'      => 'This is the description for the third option.',
			'id'        => 'my_option_3',
			'std'       => 'default value for option #3',
			'type'      => 'select',
			'options'   => array(
				'thing_1' => 'Thing 1',
				'thing_2' => 'Thing 2',
				'thing_3' => 'Thing 3',
				'thing_4' => 'Thing 4',
			),
		),
		array(
			'type' => 'section_end',
		),
		array(
			'name' => 'Section B',
			'type' => 'section_start',
		),
		array(
			'name'      => 'Option #4',
			'desc'      => 'This is the description for the fourth option.',
			'id'        => 'my_option_4',
			'std'       => 'default value for option #4',
			'type'      => 'text',
		),
		array(
			'type' => 'section_end',
		),
		array(
			'name' => 'Tab #2',
			'type' => 'heading',
		),
		array(
			'name' => 'Section C',
			'type' => 'section_start',
		),
		array(
			'name'      => 'Option #5',
			'desc'      => 'This is the description for the fourth option.',
			'id'        => 'my_option_5',
			'std'       => 'default value for option #5',
			'type'      => 'text',
		),
		array(
			'type' => 'section_end',
		),
		array(
			'name' => 'Section D',
			'type' => 'section_start',
		),
		array(
			'name'      => 'Option #6',
			'desc'      => 'This is the description for the fourth option.',
			'id'        => 'my_option_6',
			'std'       => 'default value for option #6',
			'type'      => 'text',
		),
		array(
			'type' => 'section_end',
		),
	);

	$args = array(
		'page_title' => 'My Options',
		'menu_title' => 'My Options',
	);

	$page = new My_Options_Page( 'my-options', $options, $args );

	// On frontend, you'll retrieve saved settings like this:
	// $settings = get_option( 'my-options' );

}
add_action( 'after_setup_theme', 'my_setup_options_page' );