If some settings in BTS for KATANA-AIR are grayed out on the KATANA-AIR, this may be due to a combination of KATANA-AIR System Program Ver. 1.30 or earlier and BTS for KATANA-AIR Ver. 2.0.0. Update the system program to Ver. 2.00 or later to access all functions. Download the update from the KATANA-AIR downloads page.