To group objects:

1. Click Select.
2. Select the objects to group, and then click Group (or choose Arrange | Group Objects or Ctrl + Shift + G).

To ungroup objects:

1. Click Select.
2. Select the objects to group, and then click Ungroup (or choose Arrange | Ungroup Objects or Ctrl + Shift + U).

To change the properties of a group:

1. Click Select.
2. Double-click the group. The Properties dialog box appears.
3. Change the properties as necessary.
4. Alternatively, choose Tools | Goto Object, select the group, and then click OK.