GNOME Boxes - Change RAM of existing virtual machine

Hi,

when I setup a new virtual machine with GNOME Boxes I can define the RAM and max. disk size. But it seems like afterwards I can’t change it, when I go to the settings all these options are disabled:

I can only adjust the number of CPUs. Is there really no way to adjust the other parameters afterwards?

Thanks!
Björn

I’m wondering the same thing.