Set default score for each measure where no data exists

Would like to be able to, via scorecard configuration, set the default (or baseline) score for each measure. I have added to some of our rules but it’s not always possible, for example a manually set measure. And I would like, upon the scorecard being first created/assigned to a customer, that a default is provided, and then this is updated when the relevant criteria is hit for each measure via rules, or manually overridden by the CSM.