In the past I've been able to split the entries into multiple lines in order to trick the software into getting the math correct. The problem (for others who may stumble upon this thread later) is that you may have 4 or 5 entries from a 1099-DIV (Ordinary, Qualified, CGD, 199A, Exempt, etc.) but the software only has one nominee box.
Merrill Lynch x4567 - Qualified Dividends
Double-click to details and enter Nominee $60
Merrill Lynch x4567 - Non-Qualified Dividends
Double-click to details and enter Nominee $10
Presentation on Sch B should be $400 Dividends - $70 Nominee.
Amount on 1040 should be $240 QD, $330 Div.
Repeat the process for anything else you need to nominee.
It's cumbersome and probably not worth the effort.