Beta Testing: Different activity data for different activity groups.

I was wondering if there was a way to separate milage from different groups. A few of my co-workers and I created a group and we compare eachother's bike mileage.  I track my dog walks and my bicycle rides but I only want to show my bike rides to my work group.

I am also a swimmer and would eventually like to run again. If I were to join a swimming and running group I would only want to show the running group my run miles and the swimming group the swimming miles.

I doubt any of the groups would be too impressed that I walked my dogs 2 or 3 miles plus combining the mileage inflates mileage. I would look like an awesome swimmer if I they thought my bike miles were my swimming miles.

Is there a way or would there be a way that I could choose what kind of mileage goes to each of my groups. I dont feel like managing two different profiles. Its possible Im and idiot and I havent figured it out yet. Please let me know. Thanks.