How to type monospaced numbers using system font in macOS? The San Francisco font uses proportionally spaced numbers by default, however it does support monospaced ones. As a developer I know how to make it use monospaced numbers when showing text in an app, but I have no idea how to type them while using text editors such as Notes. 

Does anyone know how to do this?

I'm currently using Helvetica Neue for monospaced numbers as a workaround.
The standard way to do this would be Format > Font > Show Fonts, click on the gear wheel at top left, then on Typography, then select the right variation for numbers.