Kerning

[Seamas_O_Brogain]

Can anyone explain the purpose of the setting “Pair kerning” under “Format > Character > Position”?

For some time now Libre Office has implemented the principal Opentype features, most notably kerning and ligature substitution, by means of the options “kern=1” and “liga=1,” respectively, appended to the font name; and it seems to work perfectly.

As far as I can see, selecting the “Pair kerning” character style makes no difference, whether the Opentype feature has been specified or not.