Correct Mistakes - Autodesk 057B1-41A111-1001 - AutoCAD LT 2010 User Manual

Edit Objects as a Group
When group selection is turned on, you can move, copy, rotate, and modify
groups just as you can modify individual objects. If you need to edit objects
within a group, turn off group selection or use grips to edit individual objects.
For more information, see Select Objects in Groups (page 202).
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.
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