Report on how scheduling logic was applied

I am constantly scratching my head trying to figure out why certain items are scheduled later than i think they should be. What logic is being applied? Why is something so late? Why can't i bring it forward?

I often manage to derive the reason, after hours of trial and error, then write down a note to myself 'ah, check the rank' or 'check the dependency', or 'Portfolio honours X before Y'. I would like a report that explains step by step why Initiative 7 is scheduled for April 17th, how did Portfolio arrive at that conclusion?