I am now happy with the VCV oscilloscope. I pulled a 4 channel and can do exactly what I want with it. I just use the zoom from the view. However, it is also a mystery to me why such a thing does not exist as a screen-filling standalone version. For a programmer, this should be a coffee night to realize something like this - and for a modular, an incredibly useful visual tool for understanding his nerdy envelopes inspired.