The sample in this tutorial shows how to add, move, and erase data points with editor.
To create new series of points, select menu item
<Edit><Points editor><Drop points>
, and select color, marker, and radius of points on right toolbar.
To drop points, move the mouse and click left button. Minimum distance between following points is assigned on property page
To remove bad points, select menu item
<Edit><Points editor><Erase points>
, select color, move the mouse and click left button. Only the points with current color will be removed.
To remove points any color, hold
key and move the mouse. The series will be deleted, unless remain points.