Replicate the lighting key in each area. Use a thick line for the symbols for all lighting equipment. (If you, as lighting designer, are going to be assigning circuits to each instrument, do so when you draw each instrument.) When you plot the location of the fixtures, it is usually easiest to start with an area that will be the least encumbered by set pieces and masking. For proscenium and thrust productions, this is usually one of the areas down center. For arena productions, the least encumbered areas are usually center stage. If you’re a little hazy on how to replicate the key in the lighting areas, you might want to review Chapter 14 , “Using the Lighting Key to Draw the Light Plot.”