Wolfgang: Many thanks for the fix and for the detailed explanation, which was very helpful! Best wishes Idris -- Professor Idris Samawi Hamid Department of Philosophy Colorado State University Fort Collins, CO 80523 On Aug 18, 2023, 10:56 AM -0600, Wolfgang Schuster , wrote: ** Caution: EXTERNAL Sender ** Hamid,Idris schrieb am 18.08.2023 um 17:30: Dear gang, The following, simple MWE gives an undefined control sequence error: ======= % \usemodule[translate] % \enableinputtranslation \startluacode -- context.usemodule({translate}) context.usemodule{translate} context.usemodule({ "first" }) or context.usemodule{ "first" } context.enableinputtranslation() context.darkgreen() \stopluacode \startTEXpage[offset=1em] \translateinput[Hermes][Idris] Hermes \disableinputtranslation Hermes \stopTEXpage ======= tex error > tex error on line 14 in file ./test-luacode.tex: Undefined control sequence \translateinput [Hermes][Idris] ======= The reason for the error is that the module is not being loaded. Toggling back to context syntax, of course, works. Reference: ConTeXt Lua Documents by Hans Hagen, page 22. The following analogous code works: \startluacode context.startchapter{first} \stopluacode It doesn't work or at least it does not what you expect, the examples in the manual pass strings ( "..." ) wherever text is expected while you pass a lua variable to the commands. Passing variables only work when the variable itself refers to a string, e.g. translate = "translate" Wolfgang