I have a dataset of nearly 1000 individuals, each individuals have 1200-1300 obs. The task is run regression on the individual level and the use the command suest to get sur coefficients. The question is I have 1000 regressions but Stata can only store 300 estimation results in the storage. So it may be very helpful to me if you have any idea.

1. Find _est.ado and modify the 300 limit. The question is I can't find _est.ado anywhere, I wish someone could find it and tell me the path.
2. some other commands without max estimation results storing limit.
3. other genius idea

Thank you