Ability to Add Custom Properties in a network discovery

It would be nice to be able to add custom properties when doing a network discovery. I always run a discovery on multiple of the same device (example: a separate discovery for Store VMs from Store Switches), so it would be nice to be able to "tag" these like devices with a custom property. There could be a section under the "Monitoring Settings" tab where you have the option to add a new/existing custom property for the nodes.