My problem with my condition is it is long term and there is no treatment for it. CMT.I work as a postman walking over 4 hours a day .My problem at work is all of our duties cover a 4h 15 period. I do not wish to work any less hours as we have none but to deliver lighter duties within the 4h15 timespan. All of the duties in our office are 4h15 but some are lighter than others and you can finish in 4h15 whereas the duties i'm put on take longer which I don't want to work over my time. My boss states all his duties are the same and he can't give me easier duties as he has none. So if I can't do what he puts me on them I have to leave. .Is he within his rights .Atos has recommended he gives me easier duties.