Creating diferent parts from the design library

Hello ladies&gents,

I would like to ask about an option that I haven't found in Solidworks. My aim is to achieve creating a library of customized parts to build assemblies. If I get a part from a folder created in the  design library, and I add it in the assembly with the "drag&drop" method, is it possible to change the dimensions (once the part is in the assembly) without changing other parts like this last one inserted?

I red in the SolidWorks Help that is not possible. That when you change a dimension, it is changed in all the identical parts added, and even in the part in the design library folder. But I'd like to know if there is a tricky way to change dimensions without affecting other files.

Thanks in advance,

FAE

SolidworksAssemblies