A 750 version s_left s_right t_bottom t_top 0 10 0 125 // comment: pos/minus sign 10 18 0 125 // comment: autopilot display: VVI 1000 18 26 0 125 // comment: autopilot display: VVI 100 26 44 0 125 // comment: autopilot display: VVI 0 positive/negative Please notice that I arbitrary put a new digit -0 for positive or negative column and the t_coordinates have (2) as suffix, this means that it is not a rolling tape but it has 2 positions only (blank or 00) behavior*: - Blank until the VVI button is pushed to engage vertical speed mode. - Indicates existing vertical speed when V/S button is pushed to engage vertical speed mode.