how to use select option from table TVARVC

Hi experts,

can u please guide me how to maintain select-option in TVARVC(Tcode STVARV) and to use this select-option in my program.

i want a loop on this select option in my program.

and do i need to select this entry from table TVARVC before looping.

PS; kindly guide me for maintainng three entries in trasaction STVARV. and in program also.....three entries are directory name.eg. /sapdir/abc/bank/