I'm hoping to get help with Chapter 7 Exercises 7.8 in Simulation with Arena (Irwin Industrial Enginerring)

I have created the model with the advanced transfer objects but i'm lost on how to implement the process' the entities enter. According tot he table the parts will cause a process to change it's Triangular distribution when dealing with a specific part. How do i accomplish this? Posted below is a picture of my model

Assign 1 Cresate1 Decide 1 Assign 3 Route 5 Assign 4 Assign 5 Stafon 1 Machine 1 Raule 1 Statian 1 Machie 2 Roule 2 Starf Route: 3 Staian 1 Macinve 4 Route 4 Assign 1 Cresate1 Decide 1 Assign 3 Route 5 Assign 4 Assign 5 Stafon 1 Machine 1 Raule 1 Statian 1 Machie 2 Roule 2 Starf Route: 3 Staian 1 Macinve 4 Route 4