Go to your AutoCAD 2005 Help file and search on the word GROUP.  Start reading.  Usually the explanation of the command also includes all the ways it can be invoked.

Hello howhow1 and John, a long time ago I tried using groups but I found them unusefull ( I may be wrong ), now I use and abuse of blocks ( with all their complex functions ) and am very happy with this.

I read what was available to me  (didn't skip class)
  ok . . details
what I want to  do and find  find handy is  when I'm laying out a design is to build a group of multiple objects(lines, circles, arcs, symbols etc)  so as to  manipulate, as well as copy individual object(s) from that group after exploding
in a-cad 2004 LT there  is  a group toolbar  which allows  you build groups,
 explode them add to them, and rebuild them  using  the icons in the toolbar
 the only similar icon in 2005 is the explode icon
 the steps I've used  in creating the group:

To create a group

1. At the Command prompt, enter group.

2. In the Object Grouping dialog box under Group Identification, enter a group name and a description.
3. In the Create Group area, click New.

The dialog box closes temporarily.

4. Select objects and press ENTER.

5. Click OK.

when clicking the explode icon, and then clicking on the group the command line message  reads
"_ objects were not able to be exploded"  thus leaving the group intact

upon  typing group in the help search box what appears is "create  groups" with the tabs "concepts,
procedures and reference"  typing "ungroup" yields the same result
 the only info regarding  ungrouping displayed  so far;
" The objects in your drawing can be members of more than one group, and groups themselves can be nested in other groups. You can ungroup a nested group to restore the original group configuration."
where does it explain the steps for this this ?

 There is no group toolbar  in the customize menu (unless I need glasses) that I'm seeing on 2005,
 there is no topic "about groups"or section called " to ungroup objects objects"
 under the heading "group objects"  "procedures" tab  what in offered is

 upon typing " -group " an option of exploding a named group is available
 however  I did not name  all of the groups
do I have to go back and rename the groups?
 so what I want to do is to have a toolbar   to click on an icon  rather than having to type the command  every time  with the ability to build, modify and explode groups with in a drawing
 yes    I appreciate the guidance " if you give a man a fish he eats for a day, and if you teach a man to fish  he eats for a lifetime"
  any  pearls  would be appreciated