Thanks Nigel for support on my request for a comment field.

I would also agree with Nigel on GUI. The present CII input is not perfect for everybody but it is 95% there. I am more than happy with the overall approach and definitely would not want it changing.

The movers and shakers might be easily impressed by slick interfaces but in my 20 years experience, Stress Calc input is never on the critical path. Input is only a small percentage of the calc process. Even if input could be improved by 10%, it would only be 10% of 20% which is an even smaller number. My support goes with any modification that improves the other 80% of the calc process or adds new calc features.

A cattle prod programmed to require pipe supports to be located on piping arrangements at practicable locations would be my modification of choice.