The general Run/Fix and Enhancements tasks should be left as year-long tasks under your Service Operations Activity. You may have other enhancements in your Service Ops that will not last the entire year. To avoid shortening your general Enhancement task by adding children/sub-tasks, you will need to create a new summary task called “Other Enhancements”. Under this summary task, you may add all other enhancement activities which may be needed during the course of the year. Do not assign resources to summary tasks.