Willi, thanks for being supportive. In the meantime, I have taken another step: by using tftopl, I produced a .pl-file of my font and edited it. I inserted a "LIGTABLE" with ligature (and kerning) information. After using pltotf and using the new .tfm, I had partial success: I get a lot of the ligatures I want! However, a few problems remain: 1) The "space"-glyph has vanished. I assume it must somehow have been mismapped. Does anybody have an idea how I could remap this? 2) One Greek accent is called by using the "~"-character. However, I have no idea to which slot it is mapped; the same is true for the "|"-character. How can I find out? And, by what Giuseppe wrote me a while ago, I gather that I have to make at least the "|" inactive. Is this done with \catcode`|=\other ? I'm hopeful that these problems can be solved. And I am looking forward to that. I feel a lot like the monkey in a story by Wilhelm Busch: it has a coconut, it knows there must be something delicious inside, but it doesn't know how to reach it. that's the way i feel about context! Best Thomas