Tips on Customizing Internal Link Juicer: SEO Auto Linker for WordPress

How to Hide Internal Link Juicer Admin Menus

function plt_hide_internal_links_menus() {
	//Hide "Tools → Scheduled Actions".
	remove_submenu_page('tools.php', 'action-scheduler');

	//Hide "Internal Links".
	remove_menu_page('internal_link_juicer');
	//Hide "Internal Links → Dashboard".
	remove_submenu_page('internal_link_juicer', 'internal_link_juicer');
	//Hide "Internal Links → Import / Export".
	remove_submenu_page('internal_link_juicer', 'internal_link_juicer-tools');
	//Hide "Internal Links → Settings".
	remove_submenu_page('internal_link_juicer', 'internal_link_juicer-settings');
	//Hide "Internal Links → Contact Us".
	remove_submenu_page('internal_link_juicer', 'internal_link_juicer-contact');
	//Hide "Internal Links → Upgrade".
	remove_submenu_page('internal_link_juicer', 'internal_link_juicer-pricing');
}

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

Where do I put this code?

How to Hide the "Internal Links" Meta Box

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

	//Hide the "Internal Links" meta box.
	remove_meta_box('ilj_linkdefinition', $screen->id, 'side');
}

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