Hello,
Currently we do not have the Attribute Tag wizard for Export Rule in archive UI or any other Child object where absolute value or regex is to be matched for Dicom Attriibute as part of Condition/Property.
But if you want to see the list of tags which you can use, you can see it either in Attribute Filter or Attribute Coercion. Note that you can only use those tags which shall also be present in the incoming object's attributes.
You can use directly DICOM tag or its name, for eg. Modality or 00080060