[NTG-context] Formatting Indexed Words Within the Text

Hi all, Is it possible to format indexed words in a particular style within the text more or less automatically. For example, if I write There are some \index[ducks] in the zoo. ...I would like the term "ducks" to appear in small-capitals to indicate the that term can be found in the index. Ideally, I'd like to do that without explicit manual formatting. Is that possible? Thank you, Malte.