When Searching, Marking, or Unmarking in RM, you can specify Source (family), Source (general), or Any fact source. You can search or mark or unmark on all three types of sources at the same time by using the Boolean OR connector. However, if you do so, it becomes awkward or impossible (I'm not sure which) to add additional search/mark/unmark criteria with a Boolean AND connector. Therefore, I wish for a fourth source criterion for search/mark/unmark called "Any source" which would encompass the other three existing source criteria. The existing three source criteria would remain available for use. The new "Any source" criterion could then be used with other criteria using the Boolean AND or Boolean OR connector. (only after RM8 is out the door).