Pass custom options to ssh processes #2

I just found this project while searching for an alternative for i2cssh for Linux (Tilix in my case).

One thing I'm missing from csshy is that I can't pass any custom SSH options to the spawned SSH processes.

In i2cssh, it is possible to pass custom SSH options using the -X option (e.g. -Xi=myidentity.pem).

Maybe you could add such an option to csshy, too.