We will start the example here by creating a simple group comprising objects from our drawing:

1. To create a group, click on the Group icon in the Groups panel of the Home tab, as shown:

2. From the command line, select the Name subcommand, or type N  and press Enter to select it. If you skip this option, you will end up with an unnamed group and AutoCAD will assign it a random name, which can be changed later:

3. Type a name for the group but don't use spaces or special characters. In this example, I am using office as the name of the group. After typing the name, press the Enter key and the command line will again prompt you to select the objects for the group.
4. Select the chair, table, cupboard, computer, and telephone from the first cubicle in the drawing. Don't select the walls of the cubicle. Press Enter to create the group and exit the command.
5. A group called office is now created and you can use this group in your drawing.

If you select any object in the group, it will now select the whole group. If in your case the group is still not selectable, then make sure the Group selection option is active, as shown here:

In the preceding example, we mostly selected blocks to create the group but it is not always necessary to do so and you can select simple objects to make groups as well.