Need help on multisite api server configuration

Hi Guys ,

I am using multisite api module , In which there is an option to enter development , staging and testing server , I have a requirement that I can enter content first on testing server , then after reviewing it only that content should go to production server , I dont know how to do that , I can see there is an option to enter 3 servers in multisite API but dont know how I can use this .

Can somebody help me please?

Thank you.