From the front end, the user needs to enter in an address which then locates on the Google map, so by default it's not set up for lat/long info to be entered.
Translation files are used for our themes as explained on our
languages page, however there is no language switching option. Whilst there are WordPress plugins for this purpose, currently we cannot guarantee they will definitely be compatible with our themes. You can read a little more about this
here. Ultimately you would be looking at customization on your part for both of these items mentioned. Our themes are not encrypted, so you are free to make modifications if you wish. Thanks.