To Create a Named Group

Select the Add to Graphic Group tool (Drawing > Home > Groups > Graphic Groups split button).
Click the Create New Named Group icon.

The Create Named Group dialog opens.
Enter a name and, optionally, a description for the named group.
(Optional) If required, turn on Select all members when any member selected.
With this setting on and when Graphic Group lock is on, all members will be selected when any member is selected with the Element Selection tool. This applies regardless of the members' propagation settings.
Click OK.