configuring appearance
FRAME, CMD_LINES, XTERM_TITLE, PROMPT, LAYOUT1, LAYOUT2, LAYOUT3, LAYOUT_ACTIVE,
KILOBYTE, TIME_FMT, DATE_FMT
configuring command execution
CMD_F3 - CMD_F12
other configuration parameters
DIR2, QUOTE, B_PANEL_SIZE, C_PANEL_SIZE, D_PANEL_SIZE, H_PANEL_SIZE