@Tbabe
I'm going to need more information! There are a hundred ways to go about it. Are you trying to add columns to your existing table that have a table of other records, or a lookup of certain records related to one record, or are you trying to combine two tables of non-related records into one?
From the formula you provided, it appears that you want to perhaps create a column with related workorders.
I am not sure of the collection need, so the formula to have a column of related records from another datasource would be:
AddColumns(WorkOrders As _item, "Jobs", LookUp(Jobs, job_address1_Column1 = _item.job_address1)
This is going to give you a table of the records in WorkOrders with a new column called Jobs that will have a table of the records from Jobs that relate to the address.