Ability to use Dates and Numeric values in Concat Transformations

I had a great idea on how to leverage the C360 Summary tab Comment (not really utilized today as it is a free form memo field without author or audit ability) to surface the latest activity from CSM or AMs for Management/Executives. Writing to that field needs to be done in a single shot - so I went to the Concat Transformation to design...

However - admins do not have the ability to leverage Date or Number fields in Concat Transformations. Nor do we have the ability to use String functions to convert the fields types to be usable.

Who would love to have the ability to add Date or Numeric values in concatenate transformations?