all the special command to use with LCDOUT are in the PBP manual.

$fe,1 clear display
$fe,$c0 jump to 2nd line
etc

so LCDOUT $FE,1," hello "

will clear the display an write hello

LCDOUT $FE,1,"line 1",$FE,$C0,"line 2"

will clear the display and write line 1 on the first line, line 2 on the second line of your LCD.