Reference Selector Default Value

I have a reference selector displaying as a dropdown, and the values in the dropdown are being generated by a microflow, which is creating a list of a particular entity which is non-persistable, and then returning the list to the reference selector, and the reference selector is displaying one attribute of this entity. Is there a way in this situation to have the reference selector default to a particular value based on context (in this case, another value in the entity used by the dataview that this reference selector is in), rather than always defaulting to the empty value?

Thanks for your help!