title Example Of The LEV Command
gct 1 mx 4 my 4 rz 15;
lev 1 grep 0 ;levct 11 rz 30;repe 11;;
lev 2 grep 0 1;;
pslv 1
pslv 2
block 1 4;1 4;1 4;5 7 5 7 5 7
sfi -1 -2;-1 -2;-1 -2;sp 6 6 6 1
endpart
pplv
pplv
merge
zf 2 tvv
