[NTG-context] Space between item symbol and item text

Dear all, how do I decrease the horizontal whitespace between the symbol and the text in an item[ize] list? The manual suggests this: \startitemize[1*serried] \item Test \stopitemize It's not working, I get the same distance as with no option at all . Test But I wanted . Test In fact, the option <<n>>*serried does not have any effect, whereas <<n>>*broad is working properly. Any suggestions? Thanks!