With the edit dialog you can easily edit the data of a graph. You can reach this dialog via the
list dialog.
The table on the top side shows you all the data. Here you can select which rows and columns you want
to edit. You can delete or sort selected rows ascending or descending with the buttons under the Table.
You can also evaluate an expression to the selected rows and columns. Here the same powerful parser
features like in the function dialog can be used. For a list of available
functions see the parser section.