How would you chart this? Bid/Ask sizes a rather dynamic piece of info, as the are changing by the second, relevant information goes by pretty fast. 2 things I could think of how to use that info in a different format would be: a largest bid/ask size indicator maybe, something that will show you largest order filled for the day, then color coded to show either on Bid or Ask, and have that as a small data set in top left corner of chart???...... OR..... Create and utilize a tool like the Bull vs. Bear example I have here
https://www.mql5.com/en/code/7053 , where it is a histogram and the positive and negative bars are generated as a battle by Bid/Ask spread, so for each candle the Bids generated higher total sizes, green bar up, Ask generates higher total sizes, red bar going down... Now in theory that would be a cool indicator so if someone knows how to access the Bid/Ask data for this, lets test it, but that is something out of my purview. Honestly though, you are probably better off just watch T&S and the Dom, but here are some ideas that immediately jumped out at me to get the ball rolling