Centralization with shelly 2.5

  • Hello,
    I installed the SHELLY 2.5 module on all the roller shutters in my house. I would like to add a switch to control the opening and closing of all my shutters at the same time.
    How to do with a SHELLY 2.5 module? I can't figure out how to do it. Should we make a scene or use urls?
    I do not know. Thanks for your help.