Idea Summary
In "Execute PL/SQL" dynamic action, Move the "Items to Submit" and "Items to Return" fields to be inside the PL/SQL code block.

Use Case
These current fields are extremely uncomfortable to use. As mentioned in other ideas, when there are more than 2 items, we need to copy paste these items to another editor, then go inside to PL/SQL code, try to find all items in use, check it on the editor, then ok the Pl/SQL block, then copy it back from the editor.

Preferred Solution (Optional)
Remove the fields "Items to Submit" and "Items to Return" from their current location, and put them inside the editor of PL/SQL block. Also, as others mentioned, make these fields Text area and not Text field.