I am using http://hyperledger-fabric-doc.readthedocs.io/en/latest/getting_started.html for Hyperledger Fabric setup in Ubuntu VM. As per tutorial (fabric-samples/first-netwo
New version i.e the testing version of hrperledger fabric v1.1-preview gives this feature of adding new org dynamically. Main role in this is of configtxlator, jq and configtxgen. They have given fabric-samples/first-network new example which fo this work. Download the pdf of hyperledger fabric and go to chaper 11 i.e page 59 https://media.readthedocs.org/pdf/hyperledger-fabric/latest/hyperledger-fabric.pdf you will get good documentation of how it is done. Hope this helped you.