Some properties should be hidded within metadata card configuration. That works fine and it is possible to hide properties in the initial phase of a document by selecting a special workflow state as filter.
In some use cases it would make sense to hide e.g. special financial information from users except of financial department. This is only possible by hiding the property value generally - but then the property is still visible with "value not available" message but not hidden.
Idea: Add a filter option specifying a NACL where all with read rights see the property and set it hidden for the others. The same with editable,
Also: Add an option that the property should be hidden if the user has no permission for viewing the value.