I know theres a way or procedure that allows me to have trapcode shine effects flare beyond the plane of a Graphic layer (example- scaling down a 720x486, then creating shine flare so that the flare lenth fils the original 720-486 screen). Can someone refresh my memory on how you do that? Thanks! Hopefully I explained my dilemma well enough.
Not quite clear what you mean, but could it be you are refering to extending the comp and then cropping it back by nesting it in the main comp? This would be the easiest thing to do. You can also use the Grow Bounds effect to extend a layer without physically making it larger.
Grow Bounds is part of After Effects Professional. You can find it under the image control category. Just apply it before the Shine effect. It will make all effects trick into thinking that the layer is larger than it actually is by adding a "frame" of invisible pixels around it. This will effectively anything being cut of at the physical edges of the layer.