Correct, you will create a dummy 1099-DIV to enter Capital distributions that came from a foreign entity.
If your mutual fund investment makes a capital gain distribution to you, it will be reported in box 2a.
Here's a TurboTax article with more information about the 1099-DIV.
https://turbotax.intuit.com/tax-tips/investments-and-taxes/what-is-irs-form-1099-div-dividends-and-d...
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