You may want to use different fonts for text in a text box.
1. Click on the text box on the page. Text Options will open.
2. Double click on the text. Select a new font in Text Options. The selected text will change to the new font leaving the rest of the text as the original font. Highlight the text to change the font for all text in the text box.
3. You can change every letter in your text to a different font. You will see that the font shows as Mixed.