As an user, running JMP since version 9 and upgrading to JMPPRO some years ago, I'm always disapointed to shut down JMP complet while some - possible erroneous - big calculations are done and the programm is not responding and I have the urge to stop the software performing my false commands. A possibility to safe the last modifications in the opened data table would be realy helpful. As the session log was introduced with version 17, I wonder if that might be feasible using this new, wonderful feature. Or to introduce somethimg like a configurable "auto safe" in order not to loos to many modifications/ steps.