How to simulate multi-select field in form request?

Iā€™m testing my Laravel backend API and need to send an array of values in the genre field but Postman shows file and text options only.

You need to include a screen shot of your request, and how you are sending the parameters. (For example. as query params, or a JSON body?).

The advice when the issue is directly related to a specific API is to read the documentation for that API. Good documentation will include examples of the requests\calls that should show you the format needed.