Create a Security Role with access to all VMs within a cloud

So, I want to create a role that will just get access to all VMs in a cloud. I created a new role, and in Scope, I selected my cloud, I noticed I could manually specify each VM under resources, but I'd prefer not to have to go in here and change it every time I add a new VM to that cloud, but if I leave it blank, they see a cloud, and nothing under VMs... there must be a way to show people all the VMs.

I'm using Clouds to scope VMs to groups of people and manage quota/resources, so I'd like a role that gives people access to see all VMs within a particular cloud, without having to go in EVERY time and manually add them.