TO CREATE MULTIPLE OBJECTS OF THE SAME TYPE(BLENDER 2.79b)
If you want to create, let us say 10 cubes of the same size , placed side by side with some spacing between the cubes Array modifier can be used.
First open the 3D window and a cube.To active the Array modifier, go to the Properties window and clip on the spanner icon.A window with a heading "Add Modifier" will appear. It has a drop down menu with a number of modifier options. Under the Generate heading click on "Array" to open the Array modifier option. In the window which opens, set count to 10 and under the Relative option, against x axis set it to 1.1 . Then click on Apply button to create an Array of 10 cubes.
You can try out different settings by varying the count setting, and offset settings. Similarly set the offset along Y or Z axis and see the result.For more details on Array modifier, see some video tutorial on the subject.
Once the array is created, go to edit mode and hit "P" key and then click on Separate by loose parts. Then go to object mode,select all the cubes and click on Ctrl+Shift+Alt+C to move the origin to the centre of each cube. Now each cube can be moved separately. Before you did this, all the cubes would move together.
Array modifier can be used to create a row of cubes(any object), which we may define as 1X5 for a row of 5 cubes in one row. Two dimension layout of cubes can also be created, which we may define as 5x5 and three dimension can be defined as 5x5x5.
To create a 2D array of say 5x5, first create an array of 5 cubes. Select all the 5 cubes, again open Array modifier set the count to 5 and the offset against y axis as 1.1 and click on Apply button.
To create a 3D array, select all the 25 cubes created above, set count to 5 and the offset against Z axis to 1.1 and click on Apply button.
