'Ve been looking at that too Ryan. Speed is no issue here, nor reverting to a previous situation. If that needs to be done then manually so that it shows up in the time line, with proper comments. It will be used for tracking changes in processes and changes of state in processes. For example in an order management system, the change from offer to order to invoice. Or the change of specification of a batch or batchnumber of raw materials. Kind of mini 'time lines'.