Movesets?

Hi,

I have read the WIKI on Movieset but are not clear on how these are stored when meta data is stored in library (with for example Ember). I have created a group in Ember but I can´t see it in XBMC under Movies?

I have set the settings to group sets together.

I can´t see that Ember is creating a special folder for the group/set in my library so I supose that all this is saved in the nfo file?