Customization of code generated in workflow apps - SUP 2.1.3

Hi All,

I am working on workflow apps SUP 2.1.3 and I want to save one variable's value and the variable is in global scope of Util.js and then I want to use that variable in my Custom.js. I tried localStorage for saving the variable but it is not working. Some things which I am doubtful about are listed below

1. Is it  ok If I edit Util.js file? (File is not getting regenerated while deployment).

2. Local storage works fine in Android Emulator?

Please reply and suggest what things could have gone wrong.

Thanks in Advance.