I have some kind of selection problem.
Drag selection didn't work at items outside the viewport.
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When there are 5 items and they are long enough to be out of viewport, drag them from the top to the bottom to select only the items in viewport and not the items outside.
However, a full selection is made through a full selection command, such as ctrl+a.
How do I select items outside of viewport? Is there any other way but to be selected on the behind code?