add a bank, add some points, give it a radius, properties $glow_texture=$[name of texture here]
to do the blinking
"on time" is the amount of time (in milliseconds) the light will be on,
"off time" is the amount of time (in milliseconds) the light will be off,
"displacement time" is the amount of time (in milliseconds) that the bank's on and off time will be moved
so if you wanted three lights that blinked in sequence, you would need to have three banks,
on time and off time would be the same for all three banks (lets say 500, and 2500), but the displacment time would be diferent (0,1000,2000)