The interval for saving the project can be configured in the File > Options dialog:
In List & Label 21 the Designer optionally saves the current project to a backup location. If the Designer is not closed properly (i.e. system crash, unexpected shutdown or even power outage) you can easily restore the last state and don't lose hours but rather minutes of work.
If the Designer detects an AutoRecovery file during start up, you can now choose how to proceed:
The options allow to save the recovered file to a separate destination and open it from there or just ignore the file and continue. This is a great new option we sincerely hope you will never need but which might save hours of work if you do.