2015 Cadillac XTS – large clock display

Does anyone know a way to keep the large clock display on the CUE screen all the time, as in each time the car is started? The only way I can get it to display is to manually bring it up by touching the small digital display in the upper right of the screen. I would like for the large display to be up every time I start the car, but I can’t find a way to do this. Is this even possible? Thanks in advance.