BTT Window Switcher: Show Window Preview and hide the switcher popup

In v6.770 I made it so clicking the preview works to focus the window

If this option is selected in the switcher, pressing the modifier key plus a letter switches between the last two apps.

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When I do that, I release both keys immediately. I don't need to see the window. Other apps only display the window if the modifier key is held down for a certain amount of time. Could you add an option like that?