This is the screen on which you can set stage names for score sheets and can optionally specify a different number of targets to display on each stage.  You get to it through match setup or through the Score Sheet Wizard.

If you have already typed in long (at the bottom) stage descriptions for your match, you can use those as a start for your score sheet stage titles.

Click the Copy button.

 

Having copied the titles, I'm removing the extra information (about targets in this case).

 

You can specify a number of targets to show for each stage.

If you do not, each stage will have space for the maximum (12 targets).