Hi

We had an "accident" when someone removed substance in big project and realized it after undo was already not available.
We lost references to multiple PID drawings, database backup is not an option after few days of working.

Is there any chance to add lock structure attribute to folder or protected attribute to substances to prevent such problems?

My workaround is to place substances in unspecified device and lock its structure, but it is not very elegant (attached file).