What is the Keypad Button Status Monitor and how does it work?

The Keypad Button Status Monitor is a newly added monitor (U5-92) that controls target bits based on key operations on the keypad, useful for setting operation sequences on a host controller or in DWEZ. Bit0 corresponds to the left key, bit1 to the right key, and bit2 to pressing the left and right keys simultaneously; bits 3 through 7 are not used. This function only operates in Drive Mode — in other modes, the value of U5-92 does not change. (Page 8)