Do not rename the Default machine group. This group is used when a client reports into the console for the first time. If this group does not exist, Ghost will add the client to the database but into a random group.
You can only have a client in a partiticular group once. Meaning, that if you have subgroups, it can only be in a single subgroup of a parent group. If you try to have a client in more than one subgroup in a tree, you will see error "Cannot paste in same machine root group."
You cannot drag/drop a client from one group to another. You must always copy/paste or cut/paste.
To create a static machine group:
Click on the Default Machine Group
Go to File > New > Folder
Give the new folder group a new name
To copy a client from the Default machine group (this will leave a copy in the Default group and there will be an instance in the target group):
Highlight the client (or set of clients) you want to copy
Select Edit > Copy
Open the target group
Select Edit > Paste
To move a client out of the Default machine group and into target group:
Highlight the client (or set of clients) you want to copy