Most ebook compilers that allow lock by code can generate 1000+ at a time and save to txt file.
I currently have over 120 titles. So imaging I gen 120 lists and now I have to input one by one a serial for each sale cut n paste with how it is now for the shop. brrrrrr
It would be nice to be able to generate 1000 serials in a list and simply upload it as a text file for that product, and shop script alerts when the list is used down to 5 (I note a competitor product allows this)