I've recently traded up to a 2018 LEAF SV, and, while trying to preload the addresses for some favored DCQC stations, discovered that the "enter street address" function seemingly couldn't be used for one of them. I made the mistake of trying to fill out the data entry fields from top down, and by the time I'd put in the street name, the system would only allow a choice among three automatically-completed addresses, all of them in the wrong towns. I noticed, though, that there's a new alternative to "by street address", and that's to use the "Destinations by Google" choice (at least, I don't remember having that option before). With that one, I entered a search string like "Joes greasy gut-bombs". and up popped a map dotted with little red "there's one here" icons for all the nearby franchise locations. I quickly found the one that hosts the DCQC I'm interested in, poked it on the map, and it became stored destination number 2 in the car's list. A side effect of using this method, though, is that the destination thereafter shows up in menus as "Joes greasy gut-bombs", instead of something like "459 Dirello St, San Francisco".
I then found out that for the specific address I'd had trouble entering, if I filled out the top field (the state), then the bottom field (the city), and THEN the street address in the middle two lines, the Nav would actually allow the correct address to be entered.