How do I create four circular copies in edit mode? I am creating this simple windmill model for a tutorial:



I have created one blade. What is the most efficient method to create the other three spaced 90 degrees apart around the main shaft? Array modifiers only work in Object mode correct? I see two ways:


Create the blade as a separate object and in object mode use the array modifier.
Manually copy/paste 3 more versions of the blade and manually position each.


Appreciate any thoughts.
Go to object mode, set the 3D cursor to the center of the shaft by selecting the shaft, hit CTRL + SHIFT + ALT + C and set origin at center of mass. Then, hit SHIFT + S and click cursor to selected. Now, go back to the blade, go in edit mode select everything. Set the Pivot point (button located next to 'Mode' and 'Material' buttons in the 3D view, and choose 3D cursor. Last, hit CTRL + D to duplicate, hit R and then the axis it should go around, type 90 and ENTER. Then keep hitting SHIFT + R to redo the that duplication until you have the right amount of blades.