Set Control Value to a list that includes Blank

Hi All,

Very similar question to this topic, How to SetControlValue to "Blank"?, except I’m attempting to use the SetControlValue to update a filter controlling a multi select, which means that I have a list of options, and blank is one of them. I can get all of the other options working by simply doing “OptionA”, “OptionB”, etc, but I am having no luck with blank.

Thanks in advance!

While not a direct answer to my question, I did just figure out that I can rebuild the same list in my formula for the SetControlValue entry: