a ratio of 2 coaches to 4-6 attendees to one group.
All attendees and coaches in one group should speak the same language.
The attendees in one group should ideally have one operating system.
If it's possible, it'd be great if the level of attendees is somewhat matched too (so people with level 0 are together and level 3-5 people are together).
In the 2 coaches for one group, at least one should be an "expert = not first-time"
Ideally it would be awesome if each group has a female coach too.
Automatically forming groups of