How to link Azure VMs to a Virtual Azure Network?

Hi,

I have created 4 Azure VMs, and when they start up they all got a random IP address, and hence cannot communicate with one another. So I created a new Virtual Network (like I do in the Hyper-V world), in hope that I can associate the new VMs to this new Virtual Network.

However, where do I now associate my 4 VMs with this new Virtual Network? I was hoping I would be able to see something in the 'Configure' tab of my Azure VM, but this is all I can see:

Thank you,

SK