This whole fire-rating issue needs to be better handled than using cut hatches in my opinion. I don't like the use of hatches, because I want to be able to use solid hatched walls (whether black, white or grey) for presentation reasons. It should be as simple as selecting a rating instance parameter value within the wall and then you would set up a fire rating plan. Depending on what rating it is, the walls display with the appropriate graphic representation. I would like all this to be built-in and making use of user assigned annotation families or something similar for each different rating, in order to take care of regional/cultural/office standards differences. But right now I'm resorting to the old fire tape method. I built one detail component line-based family with arrays and all the rating types are controlled from within it with visibility parameters (wall to deck non-rated, 1 hr, 2 hr, 3 hr). Then I just turn my view to coarse detail, set my cut hatch to white, select the detail component tool in the drafting Tab and use the pick lines to select the wall centerline. And pick your merry way until you're done.....the only drawback at the moment is that this doesn't work with curves. I'll build one later to handle curves....or perhaps I'll use the railing tool YET AGAIN for something other than a railing