Well I don't know about you but I go to several locations frequently, (Diamond city to name one) and god I hate opening the pip boy and clicking on it. (Mostly due to awful UI of pip boy overall but that's another day and some other thread). So why not be able to allocate your favorite location a favorite number! Press 7 and fast travel away.
Another mod request but not that dire (I removed the file I think) is that annoying audio that plays when you go onto the BOS blimp (i think the blimps called prydwen (Peewdeepie? god help us)). It's god damn loud and annoying with the same audio replaying over and over along the lines of
'report to the medical officer asdskajdhad'
Kind regards -A fallout player