Training program and resistance of the home trainer

Environment: Garmin connect, Tacx Flux 2, Edge 1030 plus

I created a workout from Garmin Connect. This workout has several steps and loops. Before starting the training, I set the resistance of the home trainer to a value with Edge 1030. 

Unfortunately, the resistance of the home trainer returns to 0 after each stage of the training !

Is there a solution to set a resistance from the beginning to the end of a workout, regardless of the number of steps ?

Thanks