khushboo,

I’m not sure if you still have this question, but you could hide the second field editor if the checkbox is checked using conditional rendering. Click on the second field editor and then look at the rendering tab in its properties. You could add a rendering condition with a source type of model field value, source model of the first field editor’s model, and then look at the checkbox field. If you set the render condition to be if checkbox == false then it will hide when the checkbox is selected.

Thanks!
Amy