You'll need to enter your form K-1 as 2 separate K-1s.

On the first K-1, you enter all other boxes and boxes 16 B and 16 D.

On the second K-1, you enter just box 16 F.

That did not solve the problem.  I still have a review comment on line 16B.
Dexter D

What is the review comment or error code you are getting?

My 1st K-1 entries:  
16 code B 404;
16 code D 6;
16 code F 257;
16 code I 87

My 2nd K-1 entry:  16 code F  257
The review comment is:  "Box 16 Descrip-1 has been entered for more than 1 type of income.  Use separate K-1 wkshts to report more than 1 type of foreign gross income sourced at the entity level."
On the 1st K-1, the review screen is highlighting in red the description "Gross income from all sources" on the Code B line.  

You have entered Box 16 code F 257 on both K-1s which is correct. You should delete the Box 16 code F entry from your first K-1. Hope this helps!

After making that change, it essentially told me on the 1st K-1 that Box 16 Code M (passive foreign deductions) was inconsistent with Code F.  This was the first time a review comment related to Code M had appeared.  I made Code M blank on the 1st K-1 and  entered the amount on the 2nd K-1.  This seems to have solved the issue.

I'm glad that it helped solve your problem.