I am working on a Design Studio modification to a Work Flow inbasket. The Design Studio accesses the APINVOICE table and the APDISTRIB table. Currently, both DMEs are using the following fields to query the tables:company;vendor;invoice;suffix;cancel_seq. Since querying the APDISTRIB in this manner is inefficient, I would like to change this to retrieve the obj_id field from the APINVOICE table and use it to query the APDISTRIB table. My problem is I am new to Design Studio and am having difficulties with this. Can someone direct me on how to use a field from one DME as the criteria for the second DME?