Hey @Jordan,
Do you mean that the features of that plugin only let you filter by “date”, not the Event Start Date?
If this is not what you mean, can you elaborate a bit more on what you do mean?
In the meantime, I would also like to be frank and set your expectations early that there is likely little insight we can provide on anything related to that plugin. We do not make that plugin so unfortunately, if your questions come down to specific features/functions of that plugins, you will likely need to take those questions to the authors of that plugin for better, more-specific assistance.
Thank you,
George