[X2Go-User] Configure alternate ssh client config file???

I've added some configuration options to my personal ".ssh/config" client configuration on my linux client which are newer than the libssh file used by x2go. Specifically, the "Tag" feature, which turns out to be really useful to me. However, x2go gives "Failed to process system configuration files" error. Testing confirms the problem is with the new options in the ssh config file.

My Question: Is there a way to provide options to the ssh command issued by x2go? Specifically of course I'm thinking of the "-F <configfile>" option that specifies an alternative per-user configuration file.

Thanks in advance, Mike