Weight add features

[ccsoon]

Hi,

I would like to contribute to this app but I can't code myself Unfortunately,
but is it possible to add 2 things to the "weight" section?:

• water
• muscle

'cause our scale gives; "weight, fat, water and muscle" and would love to record them all if possible ^^

Sincerely,
Gunther W.

[ccsoon]

note: I saw in the code that there are more functions than you can access?