Allow sysadmins to configure different Active Assembly Searches for different slots

See this thread for examples of how this could be useful.

This is a very good idea. Though it did not get into 6.6, we are looking at a bunch of ways to really expand search “contextually” to the task at hand, whether it be special cases like images, rich media and user generated comments, or more general cases, like just related content by topic or segment.