Thanks for raising this question DFT. This would be a very useful feature, indeed.

I'm unaware of a way to open a "New" song with these attributes, but BAIB have given us to be able to save a chain as a group. In case you don't know, right click on a slot n the mixer to see the opportunity.

This helps some to lessen the angst of having to locate and open an FX over many tracks, although I think one must still load a saved file for each track. Preparing to use it now to know for certain.