To specify a number of measures per
line (within a region)
Choose View > Page View, if you’re
not already there.
Click the Selection tool , and select the range
of measures for which you want to specify the number of measures per line.
See Selecting
music for region-selecting shortcuts. If you want the
same number of bars per line for the entire piece, choose Select All from
the Edit menu.
Choose Utilities > Fit Measures.
The Fit Measures dialog box appears.
Enter the number of measures per system for
this document.
Click OK (or press ENTER).
This technique locks measures into their systems instead of having them float from one system
to another as the page layout changes. See Measure
layout for more information on system locks.