You'll need to connect your external calendar to your HB in order to set up a recurring event.
Then to set up a recurring event, you'd toggle on the Recurring Event button, and then select the frequency, days, and end date of the recurring event.

Daily Recurring Events
Currently, we have frequency options for weekly, monthly, and bi-monthly events. If you're looking to create a daily recurring event, select weekly for frequency and select multiple (or all) days to repeat weekly. An example of a daily 3-day recurring event can be seen below:
