This is how I did it. Do a first K-1 and K-3 but only list information for one country and then follow the interview. For each of the other countries, create a new K-1 that includes the partnership info but no numbers but check box 16. You will then be prompted for the information about the second country. Repeat until you have provided information about all of the countries on the K-3. It sounds like a lot of work, but it really is not--and it correctly generates the Form 1116. One other tip--ignore the countries for which you paid no taxes. My K-3, for example listed half a dozen countries for which I paid no tax. The whole point of the exercise is to generate Form 1116 forms to get the foreign tax credit, and you need to pay taxes to get the credit.
