Sorry for this question...I was not able to find the solution alone...
In the demo MashApp "Demo feature overview", on the tab "Tables" I can see in the top right table (headed "Table with custom styling & font settings"), that column "2004" is sorted in descending order. How can I achieve this? In my table always the last column is sorted in ascending order.
Stephan Freudl on
To specify default column width and order as well as row sorting you may utilize MashZone Composer. Double click the table widget until it has a blue border. Apply settings a MashApp should initially show, e.g. by dragging columns or clicking headers for sorting, and double click the table again to leave the edit mode.
While hovering a table some text provides a hint to this - little bit hidden - feature.