Hello All,
new to the forum with my first e-reader, looking to get back into reading

.
i apologize if this question has already been asked, or im not understanding the issue i am having.
I used Calibre to transfer books via USB and Email to my kindle paperwhite. i followed all the steps and all in all, i haven't had an issue with any of the novels or books. i even went and added the books i wanted into collections to keep things less chaotic.
the issue or rather pet peeve i am having is i noticed that ebooks transfer via Email show up on the amazon device/content manager webpage, but those transferred via USB do not.
i was wondering seeing as i have already downloaded everything via USB and its on my kindle, if there is a way to get the contents of it to show up in the online manager so as to have it in the future (i.e. upload them under documents from the kindle).
i know its a weird pet peeve, but i would simply like a single online location to manage everything on my kindle when i'm not at home, without having to leave calibre running on my pc at home.