One option are these script steps:
Enter Preview Mode [pause]
Enter Browse Mode
Users can press the Enter key (for Windows users, that's the enter key associated with the number key pad) to continue the paused script and thus do not have to click a continue button hidden in your not shown status area tool bar.
Another Other option is to use New Window before entering preview mode, then add a close window step instead of Enter Browse mode
Enter Preview Mode
Then a button in your original
layoutwindow can close the new window that was opened
A third option is to enter preview mode and use Show Custom Dialog to pause the script in Preview Mode. When the user clicks a button in the custom dialog the script continues and it can return the window to Browse mode.