[NTG-context] grid snapping (mkiv)

Hi, is the 'grid={line,??pt}' functionality already implemented in mkiv? I use it in a multicolumn environment and all I get is snapping to the 'full' baseline. \setuphead[section] [%style={\SectionHeaderFont}, style={\switchtobodyfont[12.3pt]\ss\bf\setupinterlinespace}, % grid={high}, % ok grid={line,3pt}, % snaps to 'second' baseline after=, ] The creation of a minimal example depends on the answer... :) Greetings, Peter