Folks: Again you guys are all knowing and the gurus of Legacy/tmcc/DCS/and everything else. I got my sensor tracks to work per cjack's suggestion. You are both right according to my set up. Once I entered ACC 99 Aux1 4, the sensor tracks began to load any info that was different then the preprogrammed engine info. Once everything is entered appropriately, then no further input is indicated on the Cab-2. I got all my newer engines entered. These were not on the backup LCS data utility file when I used the back up function.