I need to send an alt-click key for some functions, but virt-manager is instead interpreting them. It isn't among the pre-configured options that can be sent. Is there a way to remap the alt key or alt-click combination so I can send it through to the virtual machine?

I've also tried the RealVNC client/server trial, and I can't get that to connect at all. It does appear qemu/realvnc server is listening on 5900:

tcp        0      0 127.0.0.1:5900          0.0.0.0:*               LISTEN      - 

qemu is also configured to listen (-spice port=5900,addr=127.0.0.1). I've also verified I can connect to port 5900 manually, so a Windows firewall is not the problem.

Any ideas greatly appreciated.