If a number x is entered at #27.6, prompts will be presented to set each of the x aspiring pre-images, for example,
Select aspiring pre-image 1, empty-e fill-f (default-dec) (for aspiring pre-image 1,2,3,...x)
random-r 1d-b 2d-B hex-h repeat-p load-l: (``default-dec'' if n<=32, otherwise se ``default-random``)
These prompts are the same as for selecting a seed. They are the fully described in #15.1-10.