Changing "Interest" type to "Dividend" type

Hi, everyone. I’m a new user. I imported over 2,000 transactions based on PDF statements from 2018 to 205. The program recorded the bond interest as “interest.” I just read that I should have used the dividend type instead of interest to get the correct calculation for the profit. How can I easily convert the interest type to dividend? It is quite difficult to delete the old interest and enter it as dividends one by one.

I’m afraid manual is the only option.