Interface > Working with Digitized Input > To Delete a Point
  
To Delete a Point
You can delete a single point or a point in a chain pressing D in the Input mode. When the point is defining a chain, the adjacent chain segments are deleted, and if it is in the middle of a chain, it breaks the chain into two.
1. Place the cursor near the point to delete and press D. The point highlights in red.
2. Press 0 to confirm deletion or press 3 to abort.