You can access Grouping or Ungrouping through the "View Menu" or by clicking on the toolbar buttons.
After selecting more than one element, you can group them by simply clicking on the Group Button . After doing so a number is automatically assigned to that group. You can view this number in the Project View.
If you click on any of the items within the group, the whole group will be selected. The only exception to this is if you click in the View Window and drag a box around part of the design to select elements, then the whole group may not be selected. The reason for this exception is so that you can still have temporary grouping without having to ungroup your numbered groups.
The Group Button also has a drop down arrow for easy selection. If you click on this arrow you can select the number of the group and the whole group will be selected in the Project View and the View Window.
To ungroup a group, select an element from that group and click on the Ungroup Button . This will remove all of the currently selected elements from their group.