uv layout problem

is there a way to view the uv layout of an object in the editor?

I'm using lightup on my lightmapping but it produces it's own uv layout and the problem there on lightup is there is no functionality of uv snapshot like maya has so I can't view the uv layout the it produced, now I'm having problem how can I edit the lightmap on photoshop without the uv layout? I can't have any guides(line guide(uv layout lines)) I need it to paint the uv maps of the objects correctly thanks