Tips on Customizing Super Video Player- Best WordPress Video Display Plugin for mp4/OGG

How to Hide Super Video Player Admin Menus

function plt_hide_super_video_player_menus() {
	//Hide "Super Video Player".
	remove_menu_page('edit.php?post_type=svplayer');
	//Hide "Super Video Player → Super Video Player".
	remove_submenu_page('edit.php?post_type=svplayer', 'edit.php?post_type=svplayer');
	//Hide "Super Video Player → Add new item".
	remove_submenu_page('edit.php?post_type=svplayer', 'post-new.php?post_type=svplayer');
	//Hide "Super Video Player → Help & Support".
	remove_submenu_page('edit.php?post_type=svplayer', 'svp-support');
	//Hide "Super Video Player → Contact Us".
	remove_submenu_page('edit.php?post_type=svplayer', 'super-video-player-contact');
	//Hide "Super Video Player → Support Forum".
	remove_submenu_page('edit.php?post_type=svplayer', 'super-video-player-wp-support-forum');
	//Hide "Super Video Player → Upgrade".
	remove_submenu_page('edit.php?post_type=svplayer', 'super-video-player-pricing');
}

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

Where do I put this code?

How to Hide Super Video Player Meta Boxes

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

	//Hide the "Please show some love" meta box.
	remove_meta_box('myplugin_sectionid', $screen->id, 'side');
	//Hide the "Controls & Components" meta box.
	remove_meta_box('svp_sdfsd', $screen->id, 'side');
	//Hide the "Player Configuration" meta box.
	remove_meta_box('_svp_', $screen->id, 'normal');
}

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