In a computerized device for processing a robot control program, at least one local area of a robot path of a robot is displayed at a display screen, the robot path containing a support point that is to be modified. The display screen also shows the support point, as well as a path course therethrough and at least one direction also proceeding through the support point perpendicularly to the path course. An input device allows a user to modify the path course by modifying the position of the support at the display screen.