[NTG-context] reducing the space after the enumeration heading

Hello All, I have defined the following enumeration: \defineenumeration [Problem] [location=top, text=Problem, between=\blank, before=\blank, after=\blank] Now for one of the problems, I want the heading "Problem 13" to appear not on the top, but on the left. So before this particular problem I entered \setupenumerations[Problem][location=left,stopper=:] \Problem (From book XYZ) The issue is that there is a big space between words "Problem 13:" and "(From book XYZ)". How can I reduce this space so that it is equal to the standard spacing? Thank you.