When working with WordPress Multisite you have plenty of ways how you can add settings. You can add some custom options network-wide or you can still use classic options pages for each site of the network. For classic options pages I can recommend a superb plugin (it is me, who developed it).
But what if for your actual goal the best way to add settings is to Sites > Info pages of each site? Just like on the screenshot below:
In this tutorial I will show you how you can do that:
In this tutorial I will show you an easy way to duplicate WordPress pages to any of your sites within a multisite network.
There are different ways to implement that but we going to use WordPress bulk actions.
This tutorial is intended to show you how exactly Polylang plugin works, what database tables it uses and how to get posts filtered by a language if you’re using it within a WordPress Multisite network.
Worth mentioning that at the moment of updating this tutorial Polylang is still my favorite multilingual solution for WordPress.