Load data 2 tiems with different values ?

I have a requirement, where i have to load the same data ( all char. and Key figures) 2 tiems to DSO.

for eg.

Char1, char2, char3,char3, KF1, KF2

i have to load all once, and then again with some different value for char3.

and this char3 will b a part of key, so there should not be loading problem.

Expert Routine ?? i dont know how, but i can figure it out . or let me know if there is another way of doing it.

thanks...