Hello @Ozymandias,
Thank you for getting in contact with us! I can definitely understand how you would want them to be able to select their exact days over a three day event. Due to the nature of the fee system, they are only able to chose one of the options.
One idea may be setting it up as a one day, two day or three day pass option and then having a question box below asking for the days they wish to attend? This would add an extra step but would free up a great deal of space on the form itself.
Another possibility could be to have single days for the registration fee (I.E. Mon, Tues, Weds) and then under additional items, you could have additional days (I.E. Just Tues and Weds. If they chose an initial day as anything other than Monday, then they likely wouldn't need to click Monday down here).
I apologize for the inconvenience of not being able to allow people to select multiple fees and hope these ideas help you out! Let us know if you need anything else.
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