Maintaining entries in TVARV

Hello,

I was trying to maintain entries in TVARV table using SM30 but I am facing two problems:

1. Entries that I try to maintain in TVARV using SM30 gets maintained in TVARVC which I do not want

2. I am not able to maintain value in NUMB field using SM30. When I do the maintainence, default value 0000 gets saved in NUMB field. What can be done if we want to maintain '0001' '0002' etc in TVARV-NUMB.

Thanks in advance!!

Rohit