Even with auditorium seating, it is possible to break up people into groups. For 92 people, I’d say 10-12 groups would be fine.
You can start with the big group to get the big ideas. You can even get the big ideas before conference by doing a survey sent to the 92.
Get 10-12 big ideas and let the smaller groups drill deeper into the individual ideas. Have someone do something (anything, magic tricks if necessary) while your group analyzes the work of the small groups and report findings back to the large group.
I have seen this with conferences with over 500 people. I have personally done the same thing with groups up to 100 people. You have to scramble, but you will get a few worthwhile nuggets.
And the hardest part is distracting the 92 while you pour over their small group data. Best if it is overnight. If not, have them go on a field trip at the venue. Worst case, analyze their data over lunch. Tight timeframe, but not impossible.