If The Resort Fee is a percentage then the answer is Yes. This can be done in the Settings> Organization> Taxes and Fees> +New Tax or Fee (select Fee)
Important Consideration:
Once a Fee has been created, if you need to adjust it in the future this will need to be done by reaching out to our friendly Customer Success team and following the steps in this article.
If the Fee is a Dollar amount as opposed to a percentage then you are unable to add a Resort fee in this way. It would need to be added as it's own Menu Item and the price will need to be adjusted accordingly to each Booking.