You can save Script Editor history as a Shelf button.
directionalLight -intensity 1; rename main_light; setAttr "main_lightShape.useDepthMapShadows" 1; setAttr "main_lightShape.dmapResolution" 1024; move 0 3 0; rotate -30 0 0; pointLight -intensity 2 -rgb .9 .9 1; rename back_light; move -r -1.5 1 -1.5; pointLight -intensity .5; rename fill_light; move -r 4 6 2;
A pop-up window asks you which type of shelf button you are saving.
A Shelf button is created that executes the scripting commands you dragged to the shelf setting up three-point lighting for a scene.
This file can be found in the GettingStarted directory that you set as your Maya project:
GettingStarted/scenes/Mel_Cone.ma