The Notepad tab and the Selection tab
Below the text symbols and the Layer pop-up menu, you can find two tabs with large text entry fields.
Use the Notepad tab to enter longer text passages. When you are happy with the text in terms of wording and length, select all or part of the text, and select a note in the score. Now, the Insert Lyrics button below the Notepad tab becomes available.
When you click Insert Lyrics, the selected text is entered into the score, starting from the note you selected.
When you select text in the score and open the Selection tab, the selected words are shown in the text field. You can now change the wording of the text, and use the text format options to the left to change the appearance of the selected text. When you are done, click Apply to apply your changes to the selected text in the score.