In Voyant there are two ways to model Dividends.

Looking at the Growth section of the investment you can see a section for Dividend and Interest yield. Your first option is to reinvest this yield back into the account as shown below. 


If you instead select "no" on the Reinvest Yield option. 


In the case of a dividend, you will then see a dividend paid out in the plan each year. 


The same would be true if you instead wanted to model Interest Yield on a bond. 


To see the interest yield entering the plan you would view this from Year View > Cash Flow