The Corner Shape of Lines and Routes can be toggled between "Line (Angle)" and "Arc", and when the Corner Shape is "Arc", the Arc Length can be easily adjusted.
Toggling Corner Shape
You can toggle the Corner Shape between "Line (Angle)" and "Arc".
Method: In Line or Route Mode, [Right Click] Select => [Toggle Corner Shape] => [Toggle Corner Shape]
Line
Arc
Change Arc Corner Radius
Change Arc Corner Radius
When the Corner Shape is "Arc", the Arc Length can be set to an arbitrary value.