Using VM Groups

Create VM groups if you want to manage several VMs together, and perform functions on them collectively, as well as individually.

Create a group using . Do one of the following:
- Drag a VM on top of another VM.
- Select multiple VMs and choose Move to Group, New Group from the right-click menu.
A default name is assigned to new groups, following the format New Group <Number>. To rename the new group, right-click on the group's name and choose Rename Group. Type the new name, and then press Enter.
To remove a VM from a group, right-click the VM and choose Move to Group, No Group.
Create and manage a group using the command line. Do one of the following:
- Create a group and assign a VM. For example:
```
VBoxManage modifyvm "vm01" --groups "/TestGroup"
```
  This command creates a group TestGroup and attaches the VM vm01 to that group.
- Detach a VM from the group, and delete the group if empty. For example:
```
VBoxManage modifyvm "vm01" --groups ""
```
  This command detaches all groups from the VM vm01 and deletes the empty group.
Create multiple groups. For example:
```
VBoxManage modifyvm "vm01" --groups "/TestGroup,/TestGroup2"
```
This command creates the groups TestGroup and TestGroup2, if they do not exist, and attaches the VM vm01 to both of them.
Create nested groups, having a group hierarchy. For example:
```
VBoxManage modifyvm "vm01" --groups "/TestGroup/TestGroup2"
```
This command attaches the VM vm01 to the subgroup TestGroup2 of the TestGroup group.
Use menu options to control and manage all the VMs in a group. For example: Start, Pause, Reset, Close (save state, send shutdown signal, poweroff), Discard Saved State, Show in Explorer, Sort.