excel-like improvements to chart editing

[Marc Dunord <marcdunord gmail com>]

dear all,

below are some excel features that would be great to have in gnumeric.
Please consider implementing them.

- click on a chart to perimeter-highlight the data cells that are
plotted in that chart (as calc does already).

- drag the highlighted perimeter to an identically shaped range of
cells (which calc cannot do yet).

- click on a set of specific points in a chart (e.g., x,y scatter) to
so allow one in turn to
  i) perimeter-highlight the involved range(s) of data cells and
  ii) drag the perimeter (or a subset therein, e.g., only the cells
with the X values) to another range of the same shape.


- allow clicking on an element of a chart (e.g., X axis) in order to
edit it via say "cntrl + 1" and/or via double-clicking to open the
edit menu for that specific chart element.

best

    marc