can't you store the errors and display them later on the top-most renderer instead. on the other hand, you can probably hack it using (renderer-grab) and (renderer-ungrab).all of the editor within Fluxus itself. As I see it we may one day need the ability to pop to the top-most renderer, run something, then immediately push back, without this always being a "exception" as such (though it might
best, gabor
