Column order in App + extra column in google sheets

[Filip_Kosciuk]

Hello

1. question:
   I would like to change column order in my invetory app but I do not have any idea how can I do it.
   For example I want “current stock” at the top of the each product page but I do not know how to move it up.
   
   

2.question
I want to add new “current stock” column in Google Sheets. How can I do it? I just want to import data from this column into Google Sheet.“current stock” has already a formula and some number values in my app.
I tried to add extra column in Google Sheet and then regenerate structure via app in columns but “current stock” has completely disappeared from my application.

3.why some columns are blue and some are have regular grey color. what is the difference?

thanks for your help