cursorBackwardTab
Moves the cursor backward by count tab stops (CBT, CSI Ps Z).
A count of 0 uses the ANSI default of 1. The cursor never wraps: if fewer than count stops exist to the left, movement clamps at the active left boundary. With DECLRMM off, that boundary is column 0; with DECLRMM on, it is the active horizontal left margin.
Parameters
count
Number of tab stops to move backward.