From the manual -
How does one “Open a layout”?
Is a “layout” the same as a “template”?
The layout menu is in the top left region of your screen:
No, layouts and templates are not the same. Layouts are based on layout templates. Several individual layouts (e.g. all your string parts) can be based on the same template, while other layouts (such as the score) probably have a different template.
Got it. Thanks. (I was not in “Graphic editing” mode.)