Increasing all spacing by same amount automatically

So I’ve pretty much finished my font, but have now decided that I’d like to add a little more spacing to ALL the letters. Is there a script or some way I can do this quickly? Seems like there should be a script where I could say “Add 10 to all right side-bearings.” Is there anything like that? Thanks. -G

Filter > Transformations > Metrics: use the Relative option.

You do not need to rework the compounds, better use autoalignment on them. And update your metrics keys afterwards.