Re: Curate's egg.
Well EPS (and previously paper as well though hardly ever used) does have that functionality. They call it Repeat Dispensing and allows the GP to sign a 'master' prescription with multiple issues (GP's choice as to how many) that then repeat against a set schedule (again GP's choice).
The big advantage in EPS over the paper version is that the GP can electronically cancel those remaining issues whenever they want.