Dear list, diving into the Lua code from MkIV, I found a way to add ligatures. But I have a problem with the following sample: \startluacode fonts.handlers.otf.addfeature { name = "linearb", type = "ligature", data = { 𐁃 = { "d", "w", "e" }, Y = { "d", "a" }, b = { "P", "Q" }, } } \stopluacode \definefontfeature[default][default][linearb=yes] \definefallbackfamily [mainface] [rm] [Noto Sans Linear B] [range={linearbideograms, linearbsyllabary}] \definefontfamily [mainface] [rm] [Noto Sans] \setupbodyfont[mainface] \starttext \startTEXpage da dwe PQ 𐁃 \stopTEXpage \stoptext What am I missing to get the "dwe" ligature? Many thanks for your help, Pablo -- http://www.ousia.tk