I need to center a checkbox into the grid layout

Hi,

I need to place a checkbox in the center of a grid cell. I have tried with a text label and I could justified it by adding the following code to the diff property of the attribute:

"styles": {

     "labelStyle": {

          "textAlign": "center"

     }

}

The label finally looked like this:

However, I did not find a way to center a checkbox field into the grid:

I hope you can offer me a solution. Thank you in advance!