use of various SET macros in mib2c generated files

[deepak.sachan deepak.sachan]

Hi
There are various SET macros like MODE_SET_RESERVE1, MODE_SET_RESERVE2,....MODE_SET_UNDO in my generated file .
I have implemented only MODE_SET_COMMIT for setinng values . What is use of others??. Are they helpful to set values permanently.??
Thanks in advance.