How can I move the VDI-file to a different location?

[Heine]

Virtualbox makes a Virtual Harddisk on a default location on the C-drive.
It does not seem to be possible to change this location during the setup of a Virtual Machine.
The C-drive on my computere is getting filled up, so I need to move a Virtual Hardisk (VDI-file) to a different location.
I have done this before, but I cannot remember how I did it.
I have read a lot of info in the help files, but not found what I am looking for.
I remember it as not very complicated, so I hope someone in this forum can give me a hint.

Heine

[loukingjr]

Moving a VM