Preserve material parameter values when reloading & assigning material

Problem: I'm iterating on a custom material in designer and frequently reloading it into substance painter. It's setup on multiple layers with each layer using unique parameters. It's frustrating to keep re-entering all my old parameters per layer as I reload and apply the changes from designer. I can only preserve one set of parameters by setting defaults in designer. 

Idea: It would be nice to have the option in some form to preserve parameter values inside painter if their name & type have not changed when assigning the reloaded material to a layer that has the same material. Either a pop up question "yes/no" I can enable in preferences or check box etc. 

Unless there is already a way to smooth out my work flow?