Models Enhancements

[Bryant Almany]

I'd love to be able to view the 6-hr average precip rate, MSLP, 1000-500mb Thickness model product. Not sure the best way to implement this but it would be super nice to have. Also the ability to select a default model. For example, the option to select a different model (or the most recently updated model) automatically rather than ECMWF being the default and having to change it every time.