Cross Sections Stations

I am attempting to cut cross sections and would like to add additional sections at driveways, intersections…  When run the Create Cross Sections I setup the start and stop stations with interval, then go to custom and add additional stations.  When I generate the sections only the custom are generated.  If the custom is left out then I have the sections at the interval chosen.  Is there a way to get both sets of sections to generate at one.  What I end up with is two models.

PowerGeopak SS4

08.11.09.872