Create a less permissive [view_only] data source group Modality

It will be great to have a lesser permissive [View Only] Group than could integrate less privileges.

For exemple, in our institution, we have read_only users that would not be able to download data from Dashboards neither view queries, even if they are behing part of a [View Only] Group


Would it be possible to add this datasource group modality @arikfr ?