Synthesizer editors should expand the synthesizer functionnalities when possible and not only mimic the hardware limits. Here are some examples of how this is done in Softknobs editors:
Edit the parameters on screen, see how modulations interact with other parameters and apply parts of a patch to another.
Retrieve all patches from your synthesizer and store them inside the library. Export patches to SysEx files as you wish.
Organize your patches on your computer with banks, sessions, patch categories and timbres. Add comments and rating to one or more patches at once. Find the patches you are looking for with advanced filtering options.
No need to overwrite existing synthesizer patches, just browse the patches directily from Midi and SysEx files. Just drag and drop one or more files on the library to show their contents.