Dave Smith Instruments SYNTHESIZERS

I'm thinking of saving up for a PEK(which should take me about 8 
months to a year!) but I have a question. In the pictures I've seen 
I'm really impressed with the way it's laid out. it almost seems 
like an editor would be useless. I use a mono evolver and an 
editor helps greatly, I don't enjoy programming without it actually. 
But with the PEK it looks like it would be almost more bother to 
hook up an editor when everything is already so clearly laid out in 
front of you.  Is my interpretation correct? would an an editor NOT 
make much difference in ease of programming? 

steve