Chapter 7 Letter Pattern Operation60 Owner’s Manual of BECS- A15 Computerized Control Systemchange along with the position of arc, but fix at a certain angle“Increase Radian”: when user ranks the letters in arc, this key can enlarge theradian of the reference arc“Reduce Radian”: when user ranks the letters in arc, this key can reduce the radianof the reference arc“Whole Clockwise Rotate”: rotate the whole letter string clockwise“Enlarge Letter Interval”: increase the interval between letters“Reduce Letter Interval”: reduce the interval between letters7.4 Save Letter PatternAfter finishing the letter pattern edit, user can press to display a window foruser to input pattern number and name, and then press again to save.