Of coarse there is the PICKFIRST system variable that lets you select objects first, before starting a command… But here is another option for creating a selection set that is reusable. This command is aptly called the “SELECT” command and is a command in itself.
In this post the Select command will be used to create a selection set and then the selection set will be recalled by using the “Previous” option.
But first, Here’s how to use SELECT:
- SELECT <enter>
- Select objects <enter> when finished selecting objects
- <enter> onve more to accept the selection set.
Note: You will see a total of the selected objects listed in the command line when the select command is finished.
PREVIOUS option
When asked to make a selection set in a command, if you have already made a selection set of objects, you can use those objects by entering P <enter>. This will call the Previously selected objects.
Here’s how:
- Start a command that requires you to “select objects:”
- When prompted to “Select objects:”
- P <enter>
- <enter> again to accept the selection set for the command to use.
AutoCAD Tips 
BY USING “P” it is pan command that is activated
you must first use the command SELECT and then make a selection set.
After you make that selection set and exit the command, you start another command that requires you to select objects. When you are prompted to select objects in this NEW command you enter P to select the previous selection set.
i have some problem with select previous command
when i am using copy command with previous selection, it is automatically select all object in the drawing please help me