Thanks to Mike ND9G, Vilnis YL2KF and Jim N7US for answers.
To Mike and Jim, yes, I have tried LOGTHENPOP, but I simply find it too messy to use in the heat of battle.
Larry K8UT has kindly given me information on how to use it, but I find it hard work to implement easily.
I am used to the “other” contesting program, where entering the existing call, clicking on another and being able to send this:
Vilnis, I will try this out in the BARTG HF RTTY contest in a couple of weeks, but will practice with it before then.
Thanks for your answers….
73 de Phil GU0SUP