Is your feature request related to a problem? Please describe.
When connecting from a mac client to a Windows host (running Sunlight in my case), the keyboard keys that correspond to the WIndows and Alt key have changed places. That is, the Command key is mapped to the WIndows key, and the Option key is mapped to the Alt key. In order to match a Windows keyboard layout, these two keys should be swapped.

Describe the solution you'd like
A simple option that allows swapping the position of these two keys

Describe alternatives you've considered
It might be possible to do it using third party software on the mac, but that's a bit extreme. This is a common problem connecting from a mac client to a Windows host with other screen sharing / streaming apps, so there should probably be a feature to fix this.

Additional context
I didn't find a feature or setting for this, and I'd be willing to hack one in and make a PR. I don't think it'd be very difficult.