I am trying to build a multi-period trial balance (i.e. by month). I have reviewed this guidance https://blog.prolecto.com/2016/09/10/how-to-produce-a-netsuite-trial-balance-with-saved-searches/, and from it, I have been able to produce a multiperiod trial balance by year. I think I need the best reference source for Formulas (SuiteQL? I saw it once but I can't find it now).