In the factory flow simulation, the material initially starts in the buffer and then moves to Machine 1 for processing. After the machining operation in Machine 1, the material flows to Machine 2 for the next stage of production.

At the beginning of production, a cleaning operation is performed on Machine 1 before starting the first machining cycle. This cleaning activity is defined as a generic operation to ensure the machine is properly prepared for production.

Once the initial cleaning is completed, Machine 1 begins processing materials. After each machining operation, the material is transferred to Machine 2.

However, I am currently facing an issue — Machine 1 is performing the cleaning (generic) operation again after each cycle. My requirement is that the cleaning activity should be executed only once at the start of production and should not repeat throughout the entire production process.