In Special:AbuseFilter/test it would be useful to be able to run tests based on last 100 changes in a namespace. Numbers of wikis have very active namespaces and filters are often set per namespace as a ready means to lessen conditions/checks. While this is great for the ability to test, the effective testing ability can be swamped by the busy namespaces so the only testing can be done is against the problem edit itself and testing for false positives is not easy nor efficient.
At this stage we have: action type, changes by user, dates, and page_title
I was hoping that there could be a namespace drop down list that is actively populated based on the list that shows at the standard views like RC dropdown. If there was also an easy way to trigger on/off the equivalent talk or non-talk namespaces that would get bonus points, but is not my primary need.