[Feature Request] Connect to profile with commandLine when application is running

Hello ! First thank you for your great work.

A nice option to add to your project would be to make possible to connect (and disconnect first if a connection is already open) when the GUI is already launch.

Currently, to start a new connection via cmdLine, we must stop the GUI and relaunch it via command with the good option to make it work because if the program is not closed, it just make the GUI popup and do not connect.

It's related to #283