or in some way if you have to use lower 2 notes on one hand and upper 3 in other as some sort of  "Ebsus2 over Db no3" how do you file in your brain 2 different voicings for the same chord?
if you're talking that specifically about exact voicings, then a chord symbol is not going to have enough information in it. and if it did it would be too long to read. to specify exact voicings including octave data, i think you're either gonna need staff notation or an audio sample