How to "not clear" the screen when using dialog?

dialog is a great tool but I can't find a way to use it in a bash script where it would NOT clear the screen beforehand. I know this is possible if I use --keep-window in conjunction with --and-widget but in this case I cannot process the user input before displaying the next dialog. Is it possible to launch a dialog command and having it draw its window without clearing the screen ? Is there some trick I'm not aware of ? **EDIT** (clarification): Here's a simplified example script of what I'd like to achieve (no, I'm not trying to write a game in bash ;) ): the user input from the first dialog is important to the script and is saved in the variable selection The second dialog should then be displayed in front of the first one. But calling dialog automatically clears the screen (and so the first dialog has disappeared)

#!/bin/bash

# selection will contain the "tag" of the option selected, either 1, 2 or 3
selection=$(dialog --output-fd 1 --menu "Which cup will you choose ?" 0 0 0 1 "A simple wooden bowl" 2 "A golden jeweled cup" 3 "A plastic goblet")

# and now a second dialog that I'd like to show in front of the first one without clearing the screen

case $selection in
        1)
        dialog --msgbox "You have chosen ... wisely." 0 0
        ;;
        2)
        dialog --msgbox "You chose ... poorly" 0 0
        ;;
        3)
        dialog --msgbox "You must be kidding right ?" 0 0
        ;;
        *)
        dialog --msgbox "You have to choose one !" 0 0
        ;;
esac