Generally, portfolio income is not reported on Sch E. Part I is used to report income/deductions from rental real estate and Royalty income/expenses. I interpret your comment of "Other Portfolio Income" to be investment income. Not reported on Sch E.
See Instructions for Sch E
Link here for Investment Income and Expenses (Portfolio Income)
I was specifically instructed to enter these details on schedule E (other portfolio income comes from distribution from a trust and expenses are legal fees paid by the trust). Thus my question of how to force Turbotax to enter these numbers?