I want to be able to track professional/technical literature without it cluttering my personal profile. It would be great to be able to create an alter-ego under the same account – with completely separate libraries, reading history, etc, and to be able to easily switch between the two. Like a profile in a web-browser.

Alternatively, adding a way to switch between accounts with a single click would serve the same purpose, but in a different way. I will make a separate request for it, but this one is definitely preferable.