343. Basic operations3-1. Background transition3-1-1. Selecting the busPress one of the crosspoint buttons to select the material to be used for the background transition.Depending on the operating status, the button pressed will light in one of two colours.Lighting in red: When the selected input signals are output to PGM.(However, the indicator lights in amber during FTB operations.)Lighting in green: When the selected input signals are not output to PGM.1 /17 2 /18 3 /19 4 /20 5 /21 6 /22 7 /23 8/24 9/25 10 /26 11 /27 12 /28 13 /29 14 /30 15 /31 16 /32PGM/AAUXPST/B SHIFTSHIFTSHIFTLighting in redLighting in greenFurthermore, when one of the crosspoint buttons is held down, the name of the input material and number of thebutton corresponding to the pressed button are displayed on the LCD.3-1-2. Selecting the bus using the SHIFT functionThe SHIFT function enables two materials to be allocated — the front material and the rear material — to onebutton, and the materials to be selected using the [SHIFT] button.A total of 32 materials — front materials (1 to 16) and rear materials (17 to 32) — can be allocated to the threegroups of 16 crosspoint buttons whether these buttons are the PGM/A bus crosspoint buttons, PST/B buscrosspoint buttons or AUX bus crosspoint buttons.There are actually two SHIFT functions: “All SHIFT” for switching all the front materials to the rear materials orvice versa, and “Single SHIFT” for switching the front material of one crosspoint button with its rear material orvice versa.“All SHIFT” works once the SHIFT function has been allocated to one of the USER buttons.“Single SHIFT” works once the SHIFT function has been allocated to the No.16 or No.1 crosspoint button of thecrosspoint button group concerned by a menu operation.