This post is a brief interlude in my "Accessible Ablutions" mini-project, and will be followed by one more post reporting the costing and sourcing detail of the project.   I found that I needed to hold a hinged shower screen firmly in place against a slopoing ceiling, and needed a custom part.   Through the good offices of Buildhub and @Temp, that was able to be done in a few days to the custom design required. This is a short description of the process, taken from the thread