New feature for inserting a date/time of latest save.

I haven't seen any way to easily and automatically insert a date/time of the latest save of a composition.

As I make changes to my original compositions, it often comes up that the different musicians with whom I play have older versions of the same composition. Such a feature would be very helpful in solving this problem. Such a feature would help ensure that all the musicians playing a given composition would all be looking at the same score.