Hi. I have taxed foreign income on investments in seven 'countries' but TurboTax is only prompting me to populate two countries. How can I input the others?

You won't be able to input all seven countries. I would suggest entering one total for all the countries and then using "various" to report the name of the country. The IRS allows the use of "Various" for certain types of income, such as passive income from dividends, as long as the total foreign tax credit is accurately calculated. 

Listing each country individually can be time-consuming, especially if there are many countries involved. Using "Various" streamlines the reporting process.