Here are the beginning codes :

select 0
cTmpPerf="TMP\"+sys(3)
create table &cTmpPerf (airport c(3), carrier c(2), type_rec c(1), ;
cfield1 c(25), cfield2 c(5), cfield3 c(5), cfield4 c(5), ;
cfield5 c(5), cfield6 c(5), cfield7 c(5), cfield8 c(5), ;
cfield9 c(5), cfield10 c(5), cfield11 c(5), cfield12 c(5), ;
cfield13 c(5), cfield14 c(5), cfield15 c(5))


use &cTmpPerf alias TmpPerf excl
index on airport+carrier+type_rec tag aircar
index on type_rec tag type_rec
index on cfield1 tag cfield1


wait "Filtering CUSTOMER WAIT TIMES data..." window nowait
select CUSTWAIT
cCuwIdx="TMP\"+sys(3)
index on region+AIRPORT+LOC_CODE+CARRIER+SHIFT to &cCuwIDX for &cFilter
set index to &cCuwIDX

Thanks again.
PP