I needed a very narrow grid for better precision. However, I found it very difficult to move a point in only one direction in such a narrow grid. For this reason, I implemented a new feature that allows a user to freeze the X or Y axis (in Unity terms, the Y axis is actually the Z axis), respectively, while moving a point by holding the X or Y key on the keyboard, respectively, while clicking with the left mouse.
If this feature is liked by others, too, and the developer is open to accept contributions, I am happy to provide a patch so that this feature can be added to the mainstream development.
