excel had a marvelous feature. You could directly alter datapoint value by clicking and dragging points in XY graph.
Excellent tool for engineerings. Data verification and correction etc
It is no longer available in excel, so this is a feature all engineers would love to have in CALC
FYI: Enhancements are almost entirely tackled by volunteers thus we give no ETA as to when (or even if) the enhancement will ever be implemented. This is just confirming that it's a valid request - not saying that it will ever be actually put into the project. In this particular case, the task seems quite difficult and thus would require a developer with significant technical skills to implement. It could be a long time (or never) before it's done.
Thanks for the suggestion.