How to enable nested virtualization in virtualbox?

Question

virtual box

Good day.
I have a machine with Windows 10 and VirtualBox installed.
I want to set up two virtual machines with CentOS+KVM on this machine.
Will I get it? Maybe VirtualBox has some plugins that will allow me to implement this?
I understand that what I want should not be used in "combat" conditions, but it will not be used there. I just need to try out a few things before I roll out CentOS+KVM on real hardware.
CPU i5 8300
OS Windows 10 Pro

Answer 1

Only on AMD and since VirtualBox 6.0
google "nested virtualization"

Answer 2

https://docs.microsoft.com/ru-ru/virtualization/hy...
https://www.vmgu.ru/news/microsoft-hyper-v-nested-...
https://forums.virtualbox .org/viewtopic.php?f=1&t=90831
At the moment, this only works with Intel VT, but in theory, by the release of Windows Server 2016, it should also work for AMD-V.

Answer 3

I did not understand why to invest one virtualka in another. Why can't they run in parallel?