I'm guessing that this file originated in an older Finale version, before Finale 2012. You can make the Staff Style you want. Just click the "New" button, check "Force Hide Staff" and select "Cutaway and Collapse".

You can also load a library of staff styles.

Finale comes with a library of its “default” staff styles - including the staff style Hide Staff (and Collapse).

I can confirm that Finale v25 (at least on Windows) does allow one to collapse or cutaway one staff of a two-stave grand staff. Since the Staff Attribute screen in the background shows the Cutaway option, you ought to be able to create a staff style to support it, as Bruce and Peter suggest.

Thanks so much!

for you help guys!

For Peter: How do i find the library of its "default" staff styles?

thanks

matteo

Matteo Sabattini,

You wrote:

“How do i find the library of its "default" staff styles?”

Open the document that should load the default library of staff styles.

File menu > Load Library…

Finale will display a directory dialog box of its Libraries folder.

Path: Libraries > Default Libraries > Staff Styles.lib