Fade entire layer problem...

I can't seem to find a straight answer, but I'm getting frustrated so I thought I'd ask.

Is it possible to fade an entire layer over time, not an object, so that multiple layers within one layout can be used?

The only thing I could perceive causing a problem from forum answers is having objects with additive effects on the layer. But all I'm getting now is either no fade, or a snap to invisible.

System While

LayerOpacity(2)>0:

-Set Layer 2 opacity to LayerOpacity(2)-1

System Every Tick

LayerOpacity(2)>0:

-Set Layer 2 opacity to LayerOpacity(2)-1

I also tried subtracting with time deltas, essentially every answer I could think of/find in the forum. I'm on R146.

Looks like you are fading the layers opacity ok.

can you post an example? I can not really think of anything off hand that could be causing this.