Hi,
In Designer you can create a graph function. Does something like that fit your needs or do you need something else ?

Hey Luc, thanks for the reply.
Sorry, I was not clear, I am already using a sub-function. It's a function for helping with exposing parameters (to make them blend in at certain values). For every exposed parameter, I need to setup the function network again (see attachment). The static floats need to be tweaked for each parameter, so I cannot put them inside the sub-function.
I need to add this function to a lot of parameters, and while it's not a big amount of work, it's kind of annoying to have to make 5 floats, attach them, etc. So it would be great if I could just drop in a single function, and the parameters could be set inside the properties panel of that function.