[NTG-context] interlines space for local footnotes

I am using only local footnotes in a document, but am having difficulty influencing the interlines space between these notes. Since I am only using local footnotes, I thought initially that the following would work for them \startsetups[footnote:interlinespace] \setupinterlinespace[line=2.4ex] \stopsetups \setupnote[footnote][setups=footnote:interlinespace] but it doesn't. I had hoped there might be something like \setuplocalfootnotes but there is not.  I also tried placing the setups locally, either with \startlocalfootnotes[setups=footnote:interlinespace] or \placelocalfootnotes[setups=footnote:interlinespace]. Any idea how I can successfully influence my local footnotes globally? Julian