The width of a measure
Starting with Pizzicato Beginner,
you can modify the width of a measure by using the measures and
staves tool or the arrow tool, by clicking just to the left of
the right measure bar and by moving the mouse. When you release,
the measure is redrawn. Its content is automatically adapted
(widened or tightened). If you do not wish its contents
adapted, you can do the same operation while holding down the
CTRL (Control) key on the keyboard. The measure width is modified
but its contents do not move. If the measure is the last of a
system on a page, the measure bar is automatically aligned on the
right margin and thus it does not work. You can bypass this limit
by disabling the option "Adjust systems horizontally on the
page" in the page setup dialog (File menu).