Adding variable set-up time

[KaiSchn]

Hi,

I am working on a method to forecast the best order for incoming jobs in an industrial factory for a university project. In our case, there are a bunch of machines where different products need to run. Your code implementation already covers a big part of my problem, but I also need to regard several set-up times of the machines. The set-up time depends on which product was produced before. With the method we are searching for the shortest duration time under regard of the set-up times and orders.
Could you please help me, how to implement this issue?

Kind regards.