I have a query in the SQL Editor which returns the ROWID, For example:
WHERE column_name = value;
The rowid is not displayed in the data grid output.
Running statement via F9 displays in Toads customizable grid which the Show ROWID in editable grid option is applied to.
Open View | Options | Data Grids - Data
Check Show ROWID in data grids
OK the changes and rerun your query in the SQL Editor
Run with F5 Execute as Script to display ROWID.