To deselect an edge, click the manipulator on the edge and press .
You can edit the radii of the fillets after you create them by selecting the Round node and using the channel box, attribute editor, or Show Manipulator tool.
If a fillet cannot be built with the current radius, the manipulator for that edge is drawn in red.
You can correct this by editing the radii with the Show Manipulator tool after the fillets are created. If the angle between the two surfaces is less than 15 degrees or greater than 165 degrees, the fillets produced might be inadequate.
For example, you can use the Round Tool on all edges of a cube, but you can not use it on the tip of a pyramid, where four edge pairs meet at the top.