I test applications and therefore I make screen shots of the application.
The errors in the application (like invalid label, bad position) I mark in Screenshot Captor with a red border.
Borders get numbers and in a document I write some text.
It often happens that in a screen shot there are 5 to 7 borders.
So it is hard to see the original screen shot without the borders.
When I talk to the programmer I sometimes want to show him the original screen shot without any borders, numbers and arrows.
Of cause I could copy the screen shot before I start painting on it.
But it would be more effective if I hide all objects created with Screenshot Captor to see the original screen.
A second click shows them all again.
So in meetings I can switch between the original screen and the screen with objects.
Deleting the objects and undo the deletion is not a good way.
Hiding the objects would be much more comfortable.