Change Tool

AutoCAD tool changes are of two kinds, namely changes in the
and change the character of instruction. This tool group changes occur
due to the addition of new tools, while the change in the character
instruction because of the efficiency of the operation.
As an example of the changes, the existing toolbar Modeling
AutoCAD 2007 on it is nothing but a few tools
the previous release of AutoCAD are grouped in Solid toolbar.
For example, changes in the character of instruction that instruction Copy
releases from 2005 to the last release, the following statement.

Select objects:
Specify base point or [Displacement] <Displacement>:

In this statement, AutoCAD conditioned for copying
image objects many times. In order AutoCAD conditioned for copying
once, then in this statement you should
enter the sub-instruction D.
While in the previous release, the following statement:

Select objects:
Specify base point or displacement, or [Multiple]:

In this statement, AutoCAD conditioned for copying
image objects only once. In order AutoCAD conditioned to
copying many times, so in this statement, you should
enter the sub-instruction M.