To edit the value in a cell, double-click on the cell (single-click if you are in Fast Navigation mode – see the column’s toolbar buttons).
Right-clicking on the table headings displays a pop-up menu that allows you to select the columns to be displayed.

You may move a column by dragging and dropping it to its new location. The red marker that appears during the move indicates its target location.

In this example, the Ref column will be relocated between the “Name” and “Stock available” columns
As in Excel, you can resize a column by dragging the right edge of a column’s heading.
To select several rows in the products table, use Ctrl + Left Click or Shift + Left Click.