Formatting dynamic text

1

How do I format text in a dynamic text field?? One of the textfields is a regular dynamic textfield with a scrollbar and the other is a text field with text loaded from an XML file. Want to make part of the text bold and larger. Tried with HTML and klicked the “render text as HTML” button in the properties panel but I must be doing something wrong. I’m quite new at programming so Im sure I’ve just missed someting stupid… Plz help!