The Hawaii Form N-288 is not an income tax form, so it is not supported by TurboTax. You will need to file this form by mail and here are links to do this:
The first link N-288 is a cover page with detailed instructions, this is where you will summarize the totals from the N-288A (second link.) You will need to complete an N-288A for each person.
http://files.hawaii.gov/tax/forms/2017/n288_f.pdf and,
http://files.hawaii.gov/tax/forms/2017/n288a_f.pdf
