Add option in the AWM creation to select the name of the column and order on which to sort the live table

By default when you create an AWM the entries of the livetable from the application home page are ordered ascendent by the doc.title column
'selectedColumn': 'doc.title',
'defaultOrder': 'asc'
If you edit the main page of the AWM in wiki mode you can update the column and order but if later you need to modify your AWM then the change is lost. 

In the last step (Customize your application home page) at LIVE TABLE COLUMNS it would be nice to have also the possibility to select the column and order (asc, desc ) by which the livetable to be sorted.