I tried using the preview. One of the issue is the size of the play panel versus space for the other items in the panel is skewed against the play area. I feel this is because the software designer has simply ported the screen size dimensions of a mobile device to the larger screen of the lap top or desktop. I feel the feature of giving the option of setting the panel size by the user as available in the browser version should be also made available for the user to set the play area and other panel areas...