change formula and load data from PSA to DSO

Hi,

I need to change a formula in a Transformation rule from PSA to DSO.

After this change, to get the correct data in the DSO, I have to reload ALL the data from PSA to DSO.

My question is : instead of reloading from PSA to DSO, is there a trick to change the data DIRECTLY in the DSO ?

Thanks for the repies !