Dear Keith and Mojca, I followed the information provided buy Keith below and everything is working just fine. Mojca I directed my request to Keith in the first instance since I felt it was most likely my lack of knowledge of how to get things going that was the problem (as usual). So thank you for your quick response and offer to test. And thank you Keith for your example below it did the trick. Very best wishes, Charlie > On 23 Apr 2021, at 15:53, Keith McKay wrote: > > Sorry. I put a typo in the engine file in my reply. It should be > > #!/bin/bash > > export PATH=/Users/pothole/data/contextarm64/tex/texmf-osx-64/bin:/Users/pothole/data/contextarm64/tex/texmf-osx-64/bin > > /Users/pothole/data/contextarm64/tex/texmf-osx-64/bin/mtxrun --autogenerate --script context --autopdf "$1" > > Best Wishes > > Keith > ******************************* CHARLES DOHERTY 13 BANCROFT ROAD TALLAGHT DUBLIN D24 YH2V home: +353 1 2447483 Mobile: +353 863868629 charles.doherty@icloud.com