You do a ListPlot.
Plot[Sin[x^2], {x, 0, 1}]
pdat1 = With[{fig = Plot[Sin[x^2], {x, 0, 1}]},
First@Cases[fig, Line[x_] :> x, Infinity]];
You get your diagram. fig 1.
You select the ListPlot area.
A red fram shows.
A tooltip says: Double-click to edit. fig 2.
You Double-click the plot line.
Another red fram shows. fig 3.
You again Double-click the plot line.
The data points become visible. fig 4.
You take a handle to resize a data point. fig 5.
You deselect the Plot. fig 6.
There are now some new values constitute the diagram.
Question is:
How can you list/table the plot diagram values after this manipulation?