One of the strands of research in SAsSy is how to adapt the presentation of plans to users depending on their interests or areas of responsibility. We have been looking at the use of highlighting and filtering for this. Our method works for both text and graphs, and considers that some tasks need to be done before others (dependencies).
I demonstrate how we do this in the current version of the system here:
Part 1: Highlighting (mp4, 5.33)
Part 2: Filtering (mp4, 1.30)
SAsSY 