Save and load ufomap

[grammers]

How do you do to save and load a map to and from file?
I have found a srv that is called save_map. When I run it it returns success but I can't find the file where is it saved? And what settings do I need to add to make it save the entire map?

When I found the map is the question how I load it again at a later time? I know this will require some relocalization to work but I have a solution for that. I guess it is a line with the path to file that is needed in the launch file.

Thanks for the help in advance!