Agree from our POV. But, it's something that anyone else out there who's paying any interest in the thread might want to contribute to. There are several things like this that *we* don't want to focus on, but would be easy for others to pick up and have a play with (just trying to encourage some more people to join the fray!)
I agree which is why I said "We've really got to work out what the intex system is for" it's an open discussion. However, this CP appears to have lost the interest of the community! Originally I thought this could be dealt with using scripts, for example an ondraw() trigger might have a script of playsoundcont(fan) or playsoundrand(5,scratch). Not quite so sure now, but will think about it.
I think it'll be difficult to do this with a script the continuous sounds have to be constantly monitered to make sure the volume and pan is correct, also it would mean scanning the surrounding area including off screen for these scripts. Likewise with animated graphics, you'd scan for scripts and the draw whilst on screen not when off screen. I think it'll be damn tricky to do as scripts.