Custom Bootstrap Menu

I’m sorry for any misunderstanding. I’m a bootstrap noob, and certainly don’t know what I’m talking about. What I tried was code made available on wp-bootstrap-navwalker page, and had to make a few modifications to get it to work, but wasn’t able to set collapse setting to be different on desktop and mobile view.
After analyzing the Virtue code, it appears that two different menus are required for mobile and desktop (and hence a mobile navigation menu location is provided in options).

The website isn’t online yet, but I was able to copy code from Virtue menus to make this, which works, but I’m not sure it would if I replace the IDs to be unique.

function create_sidebar_menu($name) {
	?>
	<nav id="nav-main" class="hidden-sm hidden-xs hidden-ss">
		<h3><?php _e($name) ?></h3>
		<?php
		wp_nav_menu([
			'theme_location' => 'bwit_lsb_nav',
			'menu_class'     => 'sf-menu sf-js-enabled',
		]);
		?>
	</nav>
	<nav class="navbar navbar-right" role="navigation">
		<div id="mobile-nav-trigger" class="nav-trigger">
			<button class="nav-trigger-case mobileclass collapsed" data-toggle="collapse"
			        data-target=".kad-nav-side-collapse">
				<span class="kad-navbtn"><i class="icon-reorder"></i></span>
				<span class="kad-menu-name"><?php _e($name) ?></span>
			</button>
		</div>

		<div id="kad-mobile-nav" class="kad-mobile-nav">
			<div class="kad-nav-inner mobileclass">
				<div style="height: 0px;" class="kad-nav-side-collapse collapse">
					<?php
					wp_nav_menu([
							'theme_location' => 'bwit_lsb_nav',
							'depth'          => 0,
							'container'      => false,
							'menu_class'     => 'kad-mnav',
							'fallback_cb'    => 'wp_page_menu',
							'walker'         => new wp_bootstrap_navwalker()]
					);
					?>
				</div>
			</div>
		</div>
	</nav>
	<?php
}

Thankyou for offering such great level of support even on free version of your theme. I’d definitely purchase your premium themes once I start making some money. And it would be great if you provide bootstrap menu widgets in them.

The design has a left sidebar with a list containing 50+ links, making it a menu seems most logical. Maybe I should make it a submenu of mobile navigation menu.

Irrelevant babbling:
The website I’m working on is a replication of a previously made – poorly designed and unresponsive site, with two sidebars each containing multiple menus with plethora of items. Given how unhappy I’m about it, I’m not going to post its link anywhere, ever.