no Graphics of shutter

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I know I if I am hereby landed in the right department
I wonder whether there is not some way goes that the switch is not logged by shutters. by all devices you can watch in graphics when was switched on or off or anythink. Only not the shutter. Is it possible to change this?

You could create a varaible with the status and put that one in the GUI so it gets a chart ?

I have insert this in my config:

{
      "id": "rollbuttons",
      "name": "buttons",
      "class": "ButtonsDevice",
      "buttons": [
        {
          "id": "roll1-up",
          "text": "roll1-up"
        },
        {
          "id": "roll1-stop",
          "text": "roll1-stop"
        },
        {
          "id": "roll1-down",
          "text": "roll1-down"
        }
      ]
    },

Then i become a new device, with 3 buttons. And have install it in the GUI. The new buttons works. But no variable and not graph from the device.
What is bad in my thinks.