IIRC, the NormalMapping effect is fixed to one light source. So, use it for your super duper important laser weapon.
Set Effect "NormalMapping" parameter 0 to the X position of your laser X coordinate
Set Effect "NormalMapping" parameter 1 to the Y position of your laser Y coordinate*
See the Demo CAPX and refer to line 1 of Event Sheet 2.
Caveat: You need to use "LayoutHeight - Y coordinate" for Y-axis. I believe there is a reverse Y axis issue which was not addressed in the Scirra code. And it currently gets wonky when you change screen resolution, so look out.