Just like for the Query Builder, you can also save results from your Editor contents when you save it as a Toad Editor File.
Simply right-click on your Editor's doc tab and choose Save File, or choose File->Save off the main menu bar.
Alternatively, you can also right-click on the Editor's doc tab and select "Add File to Project Manager".
Default option is to save to a file as type SQL, which will only save the SQL query/script contents.
Change the file type to "Toad Editor File" (TEF type) which will save not only the Editor query/script, but also the result set.
See snapcap below... hope this helps!