Maybe a silly question, but I want to know why I cannot add memory to a VM while it's on. Currently we need to turn the machine off and then we can increase it. I also know there is the option to enable Memory/CPU Hotplug, but you need to shutdown the server to enable that anyway. I realize you probably won't be changing the memory often, but I know I have been able to do it in the past. Just wanting to know if I should be able to do this, or if at the very least there is reason for not being able to it.