Support Board

jigsaw does it even better than bookmap imo, because it combines both the bid volume and ask volume into ONE volume dot (composition based on % of ask/bid volume: top portion is ask volume, bottom portion is bid volume):
https://www.sierrachart.com/Download.php?Folder=SupportBoard&download=26866

in the above example, there is a completely red dot. this means it was 99% bid volume and lots of sell market went through without many buy market orders

additionally, the volume dots ADJUST in size according to other volume dots that's visible on the chart

for example, we set a volume threshold to be 500 (so at the minimum, combined bid and ask volume needs to be 500 or more on a bar for the volume dot to show)

few minutes later, a 2000 volume dot appears

the 2000 volume dot would be BIGGER than the 500 volume dot

combines both the bid volume and ask volume into ONE volume dot

the volume dots ADJUST in size according to other volume dots that's visible on the chart