Thank you!

Yes. Super easy. Did this last night, just with fish and put it over a salad.

Definitely. I would expect the cooking time to be around the same. Check out this link: http://www.foodnetwork.com/recipes/articles/50-things-to-grill-in-foil.page-1.html

Tons of foil packet recipes, fish included.

I sometimes make parchment paper packets of fish, seasonings and vegetables and bake them in the oven. Would it be possible to put them in foil and grill instead? If so, how would the cooking time compare? Thank you!