require 140 char for one time vendor name and 140 char in OTV address

while posting a transaction of one time vendor, by default i will get 4 lines of 35 characters for NAME 1,2,3 and 4 and one street field of 35 characters. in some situations i need 140 characters for one time vendor name and 140 characters for this one time vendor Address.

i also checked the field status of the one time vendor group and checked the name1,2,3,4 fields and street2,3,4,5 field in OBD3.

when creating the OTV in FK01, i can able to see those fields as mandatory. But when i am posting the vendor invoice F-43, the system is just displaying NAME1,2,3,4 and one STREET field. (Instead of STREET2,3,4,5).

Can you pls tell me why. And pls suggest me to get the requirement resolved.