I never use pre-programmed
I never use pre-programmed schedule… so, I can not help.
When writing my schedule, I first fix the higher temperature I need to work, then I build a schedule to get the glass up to there, then to hold it the time needed to do the whole job, then I build the third part of the schedule to get safely the piece of glass down to the ground temperature.
Generally, I use a very similar schedule each time, the main difference are in the 2 or 3 segments above 1100*F.
What do you mean by “contour fuse” ? It sound to me as you wish to fuse only a part of the piece, as this is simply impossible.