Hierarchical components/graphical components

Hi,

now that I played around a bit with SID, I have a couple of questions:

1.) Is there a way to make a prototype setup and declare a component out of 
this prototype setup, or some way of nesting configurations to enable 
hierarchies of components? For example, I'd like to have a microcontroller 
with the embedded periphery modeled as separate SID components but have the 
whole setup appear as another component in SID which I can reuse multiple 
times in a higher-level setup.

2.) Are there graphical editors for SID setups? More complicated setups are 
easier to edit graphically, I think. I'm thinking of something like a 
netlister for gschem or similar.

Best regards,

Onno