Option to specify size, gui input message box scripting

We use touchscreens with frequent operator interactions using input, message, etc. boxes. It would be very helpful if the gui scripting functions would include size paramaters, ex. system.gui.inputBox(message, defaultText, x, y)

Also, I would want all elements, like the OK button, of the box to resize depending on the size of the window. The intention of this functionality is to provide the operator a larger button to click-on.