Your work objects are in class X which is in some class group G. Look in the ruleform of X to find G.
Next, click "records" left margin of developer portal and then go to
Sysadmin > Data Table
In the list that comes up, put G in the "Class Name Contains" field and click "run", and then click the entry associated with G. This brings up the Data-Admin-DB-Table rule form associated with your class, and you can change the "table name" field to your preferred table name.
Then click "check connection" to make sure your preferred table actually exists. If it doesn't, could someone else please chime in or pipe up to explain this part? /Eric