Ho can I save a function graph for luminosity to use in other fx-maps and edit it in sync ?

When I try to create a function sub-graph from luminosity function   all the SET nodes became  sort of invisiable to  fx-map . Is there a way to expose the set parametrs  or something?

Or perhaps I could make several outputs from the finction graph  or maybe a kind of output switch  , individual for evry  instance ?