[NTG-context] Vertical Space between Text and Itemize List

To get a packed itemize list I use this in the preamble \setupitemgroup [itemize] [packed] To get less vspace between the text and the first item, i changed it to this \setupitemgroup [itemize] [packed, nowhite] now there is indeed no whitespace. Is there a more granular way to place just a little vertical whitespace between the text and the first item?