after selecting the value, try clicking a blank part of the layout before adding a new record in the portal. That mouse click commits the records. If that works, you can use a script trigger on your short description field to commit records automatically.
That's definitely the ticket; clicking outside commits the document. Now I have to learn up on triggers. See you later!
Ok, trigger set up, and working. Bravo, PhilModJunk!
For anyone else needing the same, you can create a Script to Commit Record. Then, in Layout mode, select the Field that needs the Trigger. In the example above, I selected the Short Description field. Then, go to Format -> Set Script Triggers... and assign OnObjectExit to the Commit Record script.