"I able to download information from brokerage firms directly as I can do with 1040"
No. TurboTax Business is only capable of importing data from QuickBooks and, even then, it is not capable of doing so in the Form 1041 (estate/trust) module of the program.
Information from tax reporting forms, such as 1099s, needs to be entered manually.
See https://ttlc.intuit.com/questions/1901107
