Multihome – 2 Subnets on 1 NIC

I have 2 Subnets that I am trying to access via the one NIC my PC has. I’ve played around with the TCP/IP Properties/Advanced. Tried adding a 2nd Gateway with a higher Metric, tried having no gateway, tried adding a static route with the “route add” command, and nothing seems to work.

Anyone has any ideas?