Tips on Customizing Floating Awesome Button (Sticky Button, Popup, Toast) & +100 Website Custom Interactive Element

How to Hide Floating Awesome Button Admin Menus

function plt_hide_floating_awesome_button_menus() {
	//Hide "FAB".
	remove_menu_page('edit.php?post_type=fab');
	//Hide "FAB → Dashboard".
	remove_submenu_page('edit.php?post_type=fab', 'fab-dashboard');
	//Hide "FAB → All FAB".
	remove_submenu_page('edit.php?post_type=fab', 'edit.php?post_type=fab');
	//Hide "FAB → Add New FAB".
	remove_submenu_page('edit.php?post_type=fab', 'floating-awesome-button-templates');
	//Hide "FAB → Settings".
	remove_submenu_page('edit.php?post_type=fab', 'floating-awesome-button-setting');
	//Hide "FAB → Contact Us".
	remove_submenu_page('edit.php?post_type=fab', 'floating-awesome-button-setting-contact');
	//Hide "FAB → Support Forum".
	remove_submenu_page('edit.php?post_type=fab', 'floating-awesome-button-setting-wp-support-forum');
	//Hide "FAB → Upgrade".
	remove_submenu_page('edit.php?post_type=fab', 'floating-awesome-button-setting-pricing');
}

add_action('admin_menu', 'plt_hide_floating_awesome_button_menus', 1000000000);

Where do I put this code?

How to Hide Floating Awesome Button Meta Boxes

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

	//Hide the "Action" meta box.
	remove_meta_box('fab-metabox-action', $screen->id, 'side');
	//Hide the "Upgrade to Pro" meta box.
	remove_meta_box('fab-metabox-upgrade', $screen->id, 'side');
	//Hide the "Location (Premium)" meta box.
	remove_meta_box('fab-metabox-location', $screen->id, 'advanced');
	//Hide the "Setting" meta box.
	remove_meta_box('fab-metabox-settings', $screen->id, 'normal');
}

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