Pause until ScreenShot (snagit app) taken (after ROI delineated)


I use the Snagit app for ScreenShots, using the global keyboard shortcut ⇧§ after which I delineate the ROI by lightly double tapping my trackpad to start the ROI → delineate the ROI → take the finger off the trackpad to indicate that I finished delineating the ROI.

I am trying in vain to find a way to create an action so that KM will pause until the ROI has been delineated.

thanks in advance for your time and help