In Revit the lines types you can have is really pathetic compared to AutoCADs - dashes, dots and continious lines. (And the ofcourse the Insulation that has its own button to make, and the revision cloud if that counts...). Would be very helpful to be able to make various line types with shapes in 2d - like tracks, talus and I thing that was already suggested - with text in it. Out from deperation (again) we are using detail line family with text in it to display ELEC, HYDRO, Xs (for fence), etc... but comes a curve and there the solution stops. We are also forced to do untinkable things to a surveyors drawings in order to preserve their line types in Revit.