Hola amigo buenas. I have bad news for you, I let you one image with the workflow that normally should works, I suppose that the parameter to modify will be ScaleFactors but doesn’t do anything when i try to modify i think that the big probleme is to feed with the correct data type, and apparently the .dll is not present in dynamo or most sure i’m missing something as usual.
The alternative is to output the values and recreate the blocks with his correct values into a new file, but whit this one you have much work to do my friend. good luck!! 
I let you the post where i get the info.