Thomas H. asked me to break up the original post, https://domino-ideas.hcltechsw.com/ideas/NTS-I-931, so the dev team could tackle each item individually.
Only show one Location document, once installed, not 3,4 or 6, it just causes more support issues by people accidentally clicking on the wrong one(why they click on it to begin with is another story).
Leave the option to create more in the PNAB, because some people need it, but stop with the multiple locations shown by default. Support people worldwide are begging you for this one. If there is only the default location, users will not click on what "they think" is the right location, which from experience is ALWAYS the wrong one.