How can you use a relative date filter in the DOMO Campaigns distribution list filter?

Thanks @DashboardDude, I appreciate your suggestion. That would work if I was using a card, however I am attaching an excel file to the campaign directly from the data source so can't create beast mode calculations. I had thought about creating different fields in the data source that would subtract the current date from the transaction date, and then using that in my filter, or a month column, and year column in the data source, but that is a lot of extra fields. Was hoping there was syntax I could use in the distribution list filters to do the same thing. If you have any other thoughts or suggestions, please let me know.