To Change the Continuum Channel Used by the On-line Chef & Toolbox: The OBST command OBSINP DIS1 n will change the Chef on-line program to use channel "n" for the focus and pointing fits. The change takes effect the next time an observation is begun. To change the current toolbox program, type the following OBST command: MBTOOL SIG1=x1 where "x" is "a" for channel 1, "b" for channel 2, "c" for channel 3, "d" for channel 4, or "e" for channel 5.