A method of changing the states of multiple Boolean state items displayed in a computer system user interface window draws a box around a plurality of Boolean state items displayed in the window. Each of the items displayed in the window initial state, which is either of the two Boolean states. In response to drawing the box, the method changes the initial state of at least some of the items within the box to a final state, which is the opposite Boolean state. The change of state may be according to a default behavior. The user may change the default behavior.