'Bridge crane control

In AnyLogic there is a model, with a bridge crane. You need to make it so that during the simulation, you can control its speed. The parameters and sliders are created, they are also attached to the crane, the most curious thing is that these parameters affect the crane before the start of the simulation, but during the time you move the slider, the parameter changes, but the crane does not change the speed. I don't quite understand what I'm doing wrong. Or maybe you can't change its speed during the simulation? Screenshots, if necessary, tell me which ones. Thanks in advance for the answers.



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