switching between virtual machines on 3 monitors

[VBOXMD]

I am a physician running healthcare software(PACS) through virtualbox on a PC, that is connected to 3 monitors. I run in full screen mode.
i currently have 4 VM running, all in full screen mode.
Each VM needs the 3 monitors.
The software works wonderfully but there is a annoying issue.
Is there any shortcut or script to easily change between the VM's when you are in full screen mode?
VMWARE has a tab at top of its mini toolbar for all running VM. u simply click it and automatically all 3 monitors display the VM.
Any help is appreciated.

[noteirak]

AFAIK no such setting exists. Maybe someone else knows something.

[mpack]

If it 'aint mentioned in the user manual, you can usually assume it don't exist!