Schedule D, line 1a versus line 1b (Form 8949)

I am working on my 2024 return on desktop.  Turbo imported 1099-B from Broker 1 all on Schedule D line 1b with detail on  Form 8949. Great, as it was easy to check.  Info from 1099-B from Broker 2 was split between Schedule D line 1a and line 1b.  Broker 2 had multiple sale amounts and prices for stocks bought on same day and sold on same day.  Thus while there was 1 buy and 1 sale from my point of view, I have 3 entries included in Schedule D line 1a and 1 entry in Schedule D line 1b.  It is very difficult to check my numerous trades when a single buy/sell is split into 4 transactions and some of those transactions are in line 1a and some in line 1b.  It would be great if I could get them all reported in 1b with just Form 8949 to check.  Is there any way I can do this??? Thanks.