Shortcut - Scroll one line does not seem to work

Version: 1.1.4

At the bottom of Preferences - Shortcuts there is a section titled Terminal
This section lists some navigational keys for the Terminal.

These shortcuts appear to work fine
Shift+PageUp/PageDown
Shift+Home/End

but these actions do not seem to work
Scroll one line Up = Shift+Up
Scroll one line Down = Shift+Down

instead of scrolling up/down one line, the up types a letter A and the down types a letter B

Thank You