2012

Change Group Components, Name, or Description
You can specify objects to be added to or removed from a group at any time.
You can also rename a group or change it’s description. If deleting an object
or removing it from a group leaves the group empty, the group remains defined
but without any members.
NOTE Exploding an object such as a block or hatch that belongs to a group does
not automatically add the resulting components to any group.
Remove Groups
You can delete a group definition, to ungroup the contained objects.
As a result, objects are ungrouped but not otherwise changed.
Correct Mistakes
You can backtrack your recent actions using one of several methods.
Undo a Single Action
The simplest method of backtracking is to use the UNDO or U commands to
undo a single action. Many commands include their own U (undo) option so
that you can correct mistakes without leaving the command. When you are
creating lines and polylines, for example, enter u to undo the last segment.
NOTE By default, the UNDO command is set to combine consecutive pan and
zoom commands into a single operation when you undo or redo. However, pan
and zoom commands that are started from the menu are not combined, and
always remain separate actions.
Undo Several Actions at Once
Use the Mark option of UNDO to mark an action as you work. You can then
use the Back option of UNDO to undo all actions that occurred after the
marked action. Use the Begin and End options of UNDO to define a set of
actions to be treated as a group.
You can also undo several actions at once with the Undo list on the Standard
toolbar.
Select and Modify Objects | 231