Set zoom on map?

I've got two questions regarding the location/mapping capability in articles:

1) Is there any way to set the zoom level at which the maps will be displayed? Right now the map will always show zoomed out to a sort of regional level, when usually I'd like to show a street or neighborhood location.

2) Is there any way to put the map full width across the article column? I've been using a hacky approach involving an HTML asset to do this, but it'd be awesome to just use the integrated google map.

We're a Flex site, which could make a difference.

Thanks!