Kerning groups

I have two MM fonts with four masters each.
They have different x height and ascenders, thel other metrics are identical.
In one of MM I have all kerning groups I need.
I tried to figure out how, but couldn’t find - how to copy kerning groups to another MM?

Asked and got an immediate answer on Twitter from Georg, so to whom it may concern:

  • open both fonts
  • select some glyph in the font view in the font you want copy kerning groups to
  • File>Import>Metrics and select Kerning groups