How can I open a group?

Good Morning Friends! I would love to open a group for people in Germany which is where i am stationed right now and for everyone who needs that extra push and motivation... I am an exercise freak! Making my own fitness goal and willing to help others. Any info will be great! I just registered here not too long ago and i love it. I love how when i post my meals, it tells me how many carbs,fat, and protein are taken.. One of my biggest problems of all. This place is awesome!