Feature proposal: Add multiple Measurement Name

[ricco386]

It is possible to add a custom: Measurement Name which is nice, but it might be useful to have ability to store multiple of those...

If user could store multiple names and values it would add additional value. I can imagine 3 more with each measurement like water level, muscle mass, bones mass etc... I am not suggesting to hardcode the values (those were just examples), diabetics might record sugar level, etc... I suggest just to add ability to store multiple key-values.