Grouping elements allows you to work with them as a unit. The elements must be on the same sheet.
In the document window, select two or more elements.
Note:
You cannot select an element that is already a member of a group.
Choose the Group command 
.
Enter a name and click the Accept (check mark) button.
Choose the Group command .
On the Group command bar, click the Select button.
Select two or more elements.
Note:
You cannot select an element that is already a member of a group.
Enter a name and click the Accept (check mark) button.
Select a group.
Right-click and choose the Ungroup command 
.
Tip:
You can use the Ungroup All command to remove all elements from all groups automatically.
Use QuickPick to select the element you want to remove from the group.
Right-click and choose the Ungroup command .
In the Library pane or in the document, click the group to select it.
On the Group command bar, click the Select button.
Press the Shift key while you click the elements you want to remove from the group.
On the Group command bar, click the Accept (check mark) button.
Tip:
You can view and manage the groups you create using the Group tab in the Library window.
You can nest groups by selecting two or more groups. You can then ungroup the entire group or any of its members.
A nested group can consist of a combination of individual elements and groups.
You can perform tasks on all of the members of a group by selecting the group and then selecting the command or command bar option you want to use.
You can use QuickPick to select and edit one or more members of a group.
You can use the bottom-up selection method, instead of QuickPick, to select individual group members. Set the Bottom Up button on the Select Tool command bar.
You can use the Groups tab to find out if an element is part of a group. Select the element and then, on the shortcut menu, click Properties.