Does anyone else think that FS2's directive system is rather clumsy, from a mission designer's point of view? I've been doing stuff with FRED for eight years but have never found the method for setting up directives to be quite natural. You frequently have to make dummy events and chain the directive events off them in order to get the directives to show up at a certain time, and controlling the failure conditions (under which the directive turns red) can be tricky and often requires playing around with variables.
Although there is no point in changing it now, I think it would have made more sense to have an entirely separate section (like the objectives) for the directives, where you could explicitly specify the conditions under which the directive appears, is satisfied or has failed.