If i have to create a break-out section view, i always draw a closed, 2 degree spline by 3 points, make the view, and edit, if needed.
Under the edit, there is a button to modify the boundary (the last button, if I remember well), where you can redefine the spline points easily.
If you define the boundary with lines, a closed boundary's corners can be move, and it remains closed(!)
So -sorry Jerry- it is not easier to delete the break-out view, but if you use more points, or higher curve degree, it can be a pain..
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kukelyk