Tips on Customizing Simple Flexi Slider By Lms-IT

How to Hide Simple Flexi Slider By Lms-IT Admin Menus

function plt_hide_simple_flexi_slider_by_lms_it_menus() {
	//Hide "Flexi Slider Settings".
	remove_menu_page('lmsit_sfs_settings');

	//Hide "Flexi Sliders".
	remove_menu_page('edit.php?post_type=sfs_js_slider');
	//Hide "Flexi Sliders → Flexi Sliders".
	remove_submenu_page('edit.php?post_type=sfs_js_slider', 'edit.php?post_type=sfs_js_slider');
	//Hide "Flexi Sliders → Add Page".
	remove_submenu_page('edit.php?post_type=sfs_js_slider', 'post-new.php?post_type=sfs_js_slider');
}

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

Where do I put this code?

How to Hide the "Slider Images" Meta Box

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

	//Hide the "Slider Images" meta box.
	remove_meta_box('sfs-slider-images', $screen->id, 'normal');
}

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