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Tips on Customizing Newsletters

How to Hide Newsletters Admin Menus

function plt_hide_newsletters_lite_menus() {
	//Hide "Newsletters".
	remove_menu_page('newsletters');
	//Hide "Newsletters → Overview".
	remove_submenu_page('newsletters', 'newsletters');
	//Hide "Newsletters → Configuration".
	remove_submenu_page('newsletters', 'newsletters-settings');
	//Hide "Newsletters → Subscribe Forms".
	remove_submenu_page('newsletters', 'newsletters-forms');
	//Hide "Newsletters → Create Newsletter".
	remove_submenu_page('newsletters', 'newsletters-create');
	//Hide "Newsletters → Sent  Draft Emails".
	remove_submenu_page('newsletters', 'newsletters-history');
	//Hide "Newsletters → Links  Clicks".
	remove_submenu_page('newsletters', 'newsletters-links');
	//Hide "Newsletters → Autoresponders".
	remove_submenu_page('newsletters', 'newsletters-autoresponders');
	//Hide "Newsletters → Mailing Lists".
	remove_submenu_page('newsletters', 'newsletters-lists');
	//Hide "Newsletters → Groups".
	remove_submenu_page('newsletters', 'newsletters-groups');
	//Hide "Newsletters → Subscribers".
	remove_submenu_page('newsletters', 'newsletters-subscribers');
	//Hide "Newsletters → Custom Fields".
	remove_submenu_page('newsletters', 'newsletters-fields');
	//Hide "Newsletters → Themes/Templates".
	remove_submenu_page('newsletters', 'newsletters-themes');
	//Hide "Newsletters → Email Snippets".
	remove_submenu_page('newsletters', 'newsletters-templates');
	//Hide "Newsletters → Email Queue".
	remove_submenu_page('newsletters', 'newsletters-queue');
	//Hide "Newsletters → Subscription Orders".
	remove_submenu_page('newsletters', 'newsletters-orders');
	//Hide "Newsletters → Extensions".
	remove_submenu_page('newsletters', 'newsletters-extensions');
	//Hide "Newsletters → Submit Serial".
	remove_submenu_page('newsletters', 'newsletters-submitserial');
	//Hide "Newsletters → Upgrade to PRO".
	remove_submenu_page('newsletters', 'newsletters-lite-upgrade');
}

add_action('admin_menu', 'plt_hide_newsletters_lite_menus', 11);

Where do I put this code?

How to Hide Newsletters Meta Boxes

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

	//Hide the "Send as Newsletter" meta box.
	remove_meta_box('newsletters', $screen->id, 'normal');
	//Hide the "Live Preview" meta box.
	remove_meta_box('newsletters_preview', $screen->id, 'normal');
	//Hide the "Email Attachment" meta box.
	remove_meta_box('newsletters_attachment', $screen->id, 'normal');
	//Hide the "Variables & Custom Fields" meta box.
	remove_meta_box('newsletters_variables', $screen->id, 'normal');
	//Hide the "Send Newsletter" meta box.
	remove_meta_box('newsletters_submit', $screen->id, 'side');
	//Hide the "Spam Score" meta box.
	remove_meta_box('newsletters_spamscore', $screen->id, 'side');
	//Hide the "Subscribers" meta box.
	remove_meta_box('newsletters_mailinglists', $screen->id, 'side');
	//Hide the "Template" meta box.
	remove_meta_box('newsletters_themes', $screen->id, 'side');
}

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

How to Hide the "Newsletters" Dashboard Widget

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

	//Remove the "Newsletters" widget.
	remove_meta_box('newsletters-lite', 'dashboard', 'normal');
}

add_action('wp_dashboard_setup', 'plt_hide_newsletters_lite_dashboard_widgets', 20);

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