Have implemented the Numeric Input Widget ( the one with the UP and Down arrows) and set the range between
min = 0 , max = 100
All is working ok.
Question:
We are writing the numeric value into an json file and storing it to a file.json  and retriving the value after power up. That is work ok
For example:
- 
User set Numeric Value = 134 
 134 is stored .json and recalled after power up
- 
Numeric Value shows 134 after power up. 
For some reason it always just shows '0' in the numeric value after power up