Is there any way to filter items from a plan based on either their work item type or something other than whether or not they are listed as Plan vs Execution items? Our dilemma is we have a work item type called a "Time Tracker" for tracking all non-project work. We have 8 new duration fields in that work item type, none of which are the standard duration fields used by the "Task" work item type. Unfortunately, it is not possible to remove those default fields from the work item type itself, only from the "presentation" of the work item. So the problem is if we have Time Trackers defined as Plan items, then they show up in our plans. They are most definitely NOT plan items - they aren't created until the information they contain is in the past. However if we do not configure them as Plan Items, then RTC handles them as Execution Items, where they then get flagged with "the work item is planned but has no estimate specified" and "the work item is planned to be completed on xxxxxx, while the iteration ends yyyyyy" and "the work was due on xxxxxx." These false error messages are super annoying, though the alternative of having them show up in plans is even more annoying. Is there perhaps a third option I am missing?