I'll find it. The guy recommended by @nige1968 kind of answered my question in this video right near the end. He explained how modes and scales and chord tones offer many, many varied possibiliteis (he's talking about squeaky little toy instrument soloing - but it all applies to real instruments too) and IF YOU HAVE TIME (my emphasis) you can explore as many as you want, if the chords are thrown at you however, you have to think on your feet.
In other words, no one can glance at a complex chord sequence and instantly know all the modes and scales and their application, but take your time, work stuff out, and you'll start recognising patterns. I was asking for a quick fix to something for which there is no quick fix.
@Reggaebass here's an example of the kind of video I mean (can't find the specific one I referred to - I'll keep looking)