Modeling: A Million to One - Blender Foundations: The Essential Guide to Learning Blender 2.6 - page 91

Figure 4.35 A single table leg.
The sequence is shown in Figure 4.35 for using this process to create a nicely detailed table leg. By care-
fully (or even uncarefully) creating a base object and extruding and rotating it several times, you can create
some fairly detailed objects.
Let's use a new modifier to create rotated copies of the leg around the base. For this kind of operation,
placement is critical. You may or may not have positioned the leg you created below the column perfectly
in line with the column's center. For the next thing we do, we need to be sure it is centered. To position
the leg, we'll use Blender's Copy Location tool. First, select the leg, then Shift-RMB select the column
so that both are selected, but the column is active.
Unlike Copy and Paste in other programs, there is no Paste step in Blender. You simply select your objects,
make the “master” or “source” object active, and copy. The Paste step is automatically applied to all
selected objects. In this case, we just want to get the leg squarely centered on the column, so bring up
the N-key properties panel in the 3D view and RMB click over any of the Location values of the column.
A menu pops up with lots of options. Choose Copy to Selected. The table leg should jump to the top of
the column so that their object centers are in the same location.
While you're there, use the Snap menu (Shift-S) to bring the 3D cursor to the same location. We'll need
it in a bit. Choose either Cursor to Active or Cursor to Selected from the menu that pops up.