State boundaries separated in vector export

[pduginski]

It would be nice to be able to turn off state and provincial boundaries for Canada and Mexico and keep state boundaries in the U.S. For example, when I did my monsoon thunderstorm stack, I wanted to be able to show the size of the high in relation to the Western states, and that heat was being churned into the Pacific Northwest by circulation around the high. But showing the states in Mexico was irrelevant and created visual clutter. On other occasions, you need the provinces in Canada or the states in Mexico, so in those instances I'm glad they're there. So it would be useful to have the option of turning them on or off. Tnx.