Multiple configurations for same virtual machine

More kind of a feature request than a question.

I work on a Retina Mac, but in the office also have a cinema display.
Similarly I use an 8GB VM to do development but often need to have other VMs started as well and then want to reduce the memory.

As a consequence I would like to work with the very same VM, but in different configuration sets:
1. One 8GB VM with setting "Full resolution enabled" for work while using Notebook only
2. One 8GB VM with setting "Full resulution disabled" for work on Screen (because with full resolution enabled it does not look good on external screen)
3. One 4GB VM for work while other VMs are running.

Again: Not 3 different VMs but the same VM in 3 different configurations. It would be nice to have some kind of configuration switch in Parallels instead of manually having to adjust the settings.