Just don't ask about drug from Stephan (it's trigger chapter 2) and play until you:i found this in the patch notes:
-New experiments with Jimmy (starts from day 65)
I think (but im not sure) that this refers to the cindy events. Other than that there is no info about what will trigger it. Maybe (?) playing loads of games with Jimmy or just entering the lab a lot for those random events and Jimmy says that hes still working on new stuff. But im really not sure
1) get room from Vanessa
2) feed everyone to lvl 2 pills
3) meet Levi
4) complete Cindy branch with Jimmy
eventually you discover that parts and it's better to do before launch chapter 2.