Also see the following thread which outlines using SuperTool scripts to set Privacy (or clear Privacy) for the current contents of the View.
This works well for the records in Categories that are not covered by the tool: Families, Places, Sources, Citations, Repositories, Notes. Although the SuperTool GUI is limited to 1,000 records at a time, the ability to only affect the ‘selected’ records in the view is much more simple than creating a Custom Filter.