In general, you edit text objects in the same way as other objects. If a text object is selected, you can set its parameters in the Event inspector.
You edit standard text in a text object the same way you edit text in a text-editing program. You can also change font settings for standard text in the Fonts window.
Edit standard text in a score
Do one of the following:
Click the text with the Text tool.
Double-click the text with the Pointer tool.
Edit the selected text.
Change font settings
Select the text you want to change.
Choose Functions > Text Attributes > Fonts from the Score Editor menu bar, then choose settings in the Fonts window.