Is there a way to make a custom widget wrap other widgets in flutter flow?

I have a hole application already built in flutterflow and a I'm having some trouble when the keyboard is on the screen, I did some reaserch and found some awnsers like wrapping the collum or the page in a SingleChildScrollView, something like this:

 SingleChildScrollView(
      physics: ClampingScrollPhysics(),
      child: this.child,

    );

Is there anyway that can create a custom widget that accpepts childs?? that I can like put others widgets inside??