USING THE WELDMENT TOOL, AND USING THE TRIM/EXTEND TOOL FOR WELDMENTS, IM TRYING TO MITER A 2X2 WITH A 2X3. I CAN NOT GET THE MEMBERS TO MITER CORRECTLY. THE PROGRAM DEFAULTS TO 45 DEGREE ANGLE ON BOTH TUBES, HOW DO I MAKE SW UNDERSTAND TO MITER AT THE TUBES AT 34 DEGREES AND 54 DEGREES.......PLEASE HELP!!