Add a formula (numeric) as an available filter in a saved search

I want to use formula (numeric) as an available filter in a saved search. My search can be either a transaction or item search. I want to show the item name, a sum of the sales for it and how many times it was on a sales order. I have the search just fine but I have one for single lines and one for all transactions. I'd like to do it all on a single search. I referenced http://www.netsuiterp.com/2018/09/formula-text-field-does-not-work-as.html and https://www.sikich.com/insight/using-formula-values-as-available-filters-in-netsuite-saved-searches/#:~:text=Using%20Formula%20Values%20as%20Available%20Filters%20in%20NetSuite%20Saved%20Searches,-January%2016%2C%202019&text=Saved%20Searches%20are%20a%20powerful%20tool%20to%20solve%20problems%20in%20NetSuite.&text=So%20the%20trick%20here%20is,as%20on%20your%20Criteria%20tab