Importing .MTG action groups

Hi guys, my name is Patrick Heiloo and i'm new to this forum.

I got a question about actions. I would like to import a .MTG file (action group) into Mp3Tag.
How do i do that? I saw some articles about importing .mta's and .mte's, but nothing about importing MTG's. Hope you could help me.

(don't mind my English, i'm Dutch)

Copy to %appdata%\Mp3tag\data\actions

Then they appear at the Utils button in the actions dialog.