Is three-glyph kerning possible?

[fennelfox]

I've been using the paid version of Type 3.2 for a couple of years now, and am about to upgrade to the 64-bit Mac version. I would like to know if this upgrade includes any tools for kerning a 3-letter set of glyphs. My reason is that I have long had to do so much work to correct word spacing, meaning the distance between the last letter of a first word, then the space between words, then the first letter of a second word. It seems to me that all this extra work would be easier if I could kern all 3 glyphs at one time. I could find nothing in the manual or on this site mentioning such a feature. Is there something I've missed? It seems it would offer such obvious advantages. Thanks - and again, good work, Alan. 

[Allan Murray]

Kerning with 3 glyphs is not really an option with any font editor (though you could probably implement something like this with OpenType features).

The point is that it should not be required: If I have correctly kerned the spacing between two characters, say "C" and "a", then it does not matter what the third character is (ie the spacing between the "C" and the "a" should be the same for both "Car" or "Cat".

For spacing between words, what will matter is the kerning between the space character and other characters.