Schedule K-3 (1120-S) How to create separate worksheets? and Identify Countries

TT reads: On your Schedule K-3, go to Park II, Section 1, Line 24 to fill out the info below.

and further: You must enter separate K-1 worksheets if you have more than one type of foreign gross income in columns (b), (c), (d) and/or (e). -- Which I do. I have 18 lines of multiple columns of info to enter. 

Question 1- how do I create "separate worksheets"?

Question 2 - how do I match the country abbreviations in my K-3 to the list of countries in the dropdown menu within TT?

Here is the list of abbreviations in my K-3:

US

OC

CA

UK

AS

NL

EI

CJ

IN

FR

GM

NU

SP

SW

CE

SN

MX

FL