It would be helpful to have the ability to define number series with different segments. For instance, rather than just having one incremental number, you might have multiple segments each with a choice or incremental option.

Example:

Job Number: 2020PRIV0001

Three segments exist. The first four digits is the year. The next four characters might be for a private (PRIV) or public (PUBLIC) customer. The last four would be incremental. When selecting a new number, it would be nice to be able to make these selections one by one and then it gives you the next number. Dynamics SL had a flex key maintenance option that would give you this functionality.