PeopleSoft Payroll for North America: Setting up Portland Metro & Multnomah County Taxes

Can anyone share how the Local Tax Data is to be set up for an employee that has TriMet Transit Tax, Portland Metro SHS, and Multnomah County PFA Withholding Taxes? Not sure what to make of the instructions that were provided:

"A chain of linked localities with different physical boundaries should start with the smallest locality and progressively work up to the largest locality.

Also, when linking the locals, make sure that the city, not Workers Comp (OR0001), is the primary local in both the tax location and employee Local Tax Data page, and that the resident/nonresident status is the same for all locals."