Here is template to draw the initial balance lines and the double initial balance or DIB extension lines. The initial balance is used along with the price histogram or market profile. The initial balance or IB is usually the first 60 minutes on an intraday chart. The double IB extensions are used as support resistance lines and also targets.
Here are some chart examples using the IB-DIB DYO:
Here is the link to the free download of the CBOT Market Profile Handbook
from their website: