WT: Resizing an Open Window
To resize an open window:
To change the width, point to the left or right window border. When the pointer changes into a horizontal double-headed arrow , drag the border to the right or left.
To change the height, point to the top or bottom window border. When the pointer changes into a vertical double-headed arrow , drag the border up or down.
To change the height and width at the same time, point to any window corner. When the pointer changes into a diagonal double-headed arrow , drag the border in any direction.
Note: You cannot resize a window when it is displayed in a full screen (maximized).