Let the options to the user to unhide a column hidden in the layout

Sebastien HAINAUT

The option "data" but in the other way. Have a special parameter in the layout to hide a column but let the user unhide if he wants. 
With the actual option, we need to put all the columns, wth this one we will be able to display the main one but let the user choose to add more if he wants (without going in the layout)