a field in a object of Salesforce Object Sync should be used in a flow of Smart Campaign

Hello,

I am thinking if I could use a value of the field existing in a Salesforce Object sync's object more efficient,,,
I know that I can use it in a Smart List's constraint checking of "Has a record in the object", but it is not possible to use it in a flow of Smart Campaign.

Please expand the Smart Campaign's function more and more,,,