Selecting Edit ® Modify (digital) lets you change graph values by typing in new values in a Change value window.
In general, to change an object's value, click twice on it. The Change value window appears showing the current value. Here, you can enter the new value exactly.
How you use Modify objects (digital) depends on the 2D graph type you are using:
Click twice anywhere inside the graph object, and the Change value window appears.
The markers must be turned on for the graph. Markers are small circles that mark individual data values, and they are turned off by default.
Click twice on the horizontal edge for the desired column and the Change value window appears.
You cannot change these values using the Modify objects (digital) option.