Not as far as I know. Light objects are incredibly limited. Also in my experience they don't work well as a fake sun as the farther away you put them the weirder the shadow projection gets.
Maybe you can use multiple small atmosphere triggers to get the desired effect? With a transition time of 0 it might look okay.
There are some placed objects that project light, maybe you could use one of those and set it on/off stage based on entering a trigger? ATM_LightBeam_Sun for example. Though it might take more than one to get the desired light effect as those placed objects aren't very potent.
Last edited by SniperHF; 12/04/16 10:07 PM.