Currently, if the user edits the X or Y position of a cursor, this doesn't fire any event (that I am aware of), while in effect is is equivalent to the user grabbing the cursor and instantaneously moving it to a new location.
There is a "Cursor Move", "Cursor Release" and a "Cursor Grab" event, as well as possibility to catch the user selection of a cursor contextual menu event such as "Bring to Center".
It is possible to check whether the user
My suggestion: Add a "Cursor Location Edited" event for Graphs with cursors