Add windows static route

Hi guys, is it possible to add a static route to a Windows VM in Azure?

For example, am I able to do the below, which will create a static route for 10.18.0.10 to send it a specific gateway.

route add 10.18.0.10 mask 255.255.255.255 10.18.29.1

It lets me add the route but it seems to ignore it. When I tracert to 10.18.0.10 is just goes directly to the destination with 1 hop, instead of going to 10.18.29.1

I should mention that 10.18.0.10 is another subnet within the same VNET and 10.18.29.1 is a router on-prem on the other end of the express route.