Grouping of fields in 'FIELDS' view

Within the query editor you can create groups to allow you to have a view on related queries or data sources or whatever you wish. Having the ability to group tables in the fields view would enable your report designers to understand either where the data comes from or what the fields in the tables contain in terms of information - like Financials or Staffing or EXCEL files.
At a minimum having the queries group replicate through to the fields view would be good, but being able to define your own groups names even better.
This is a feature for designers rather than consumers.