The SE4 Modder should do what you want; its basically a GUI overlay for editing the components (and other data files). It doesn't generate anything from psuedocode like the templatizer, or from an overwhelming myriad of function parameter boxes like the tech gridder.
I don't remember what SE4 Modder's quirks are anymore, specifically. IIRC they were in obscure functions, and shouldn't detract from just adding some new components.