Hide artboard borders/edges

[Enlightened_play5CFB]

Is there any way to hide artboard edges (individually or all of them)? 

I'm designing a header in amockup template. I set it up in Illustrator so that the mockup template format is the larger artboard around the header design, and the actual header design is on a smaller artboard within the template. For showing the design in context I'd like to be able to show the design together with the template but without the inner/smaller artboard edges (dark hairlines) showing. 
Is there a way to turn off individual (or all) artboard edges, or can I turn of individual artboards alltogether?

See the simplified visual reference attached to understand what I'm trying to do

Thank you!

[Doug A Roberts]

Not individually, though you can hide all artboards (View > Hide Artboards)

[Kurt Gold]

You may activate the larger artboard and then choose View menu > Presentation Mode.

[Janette_W]

View > Show Artboards (Shift + Cmd + H)