@asdfl76
You break out those interest/accrued amounts into their own 1099-INT forms...with the payer/brokerage name of the $$ being the same as on the original.
1) Put box 8 &13 $$ on a separate manually created 1099-INT, and then indicate the accrued interest for those tax-exempt bonds on the follow-up page.
2) Then for the taxable interest, it depends on whether it was for box 1 $$, or box 3 $$, but for either You would create a second 1099-INT with box either box1 & 11 $$ on it, or box 3 & 12 $$ on it...then report the accrued interest for that bond type on the new 1099-INT follow-up page. Of course, the original 1099-INT may only have box 1 (&11) or box 3 (&12) $$ on it now.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*