With the multi-instances handling in SB, we now have only one instance of SB running, even if several fxml files editing a started by a user. This is fine.
But we now have an issue if one want to explicitly have 2 separate instances of different SB versions.
A typical use case would be : a user is using SB v1 for a while. A new SB v1.1 is delivered. The user liked to know the differences between the 2 versions, and need to have 2 separate instances.
We could add a parameter to the SB command line that would allow to have a separate instance.