Add "Generate data" and "Manipulate data" entries to the context menu available for cells
If a whole column is selected, add the "Generate data" and "Manipulate data" entries to the context menu available for cells, not only for the column header. Otherwise a user can feel confused ("If a column is selected, why these action are available only on clicking on the column-header?"). The entries for plotting and analyzing data are also enabled in the context menu available for cells.
Edited by Dariusz Laska