Hi Anthony,
You can use Components to create a customized version of any widget. Specifically, you can right click on a Note object and then choose Convert to Component. This will create a new screen file with the note. Change the text setting of the note to be left justified and save it. Now you'll have a new component in your palette that works as a regular Note but with different default settings.
For more details please see this section in the user guide:
https://wireframesketcher.com/help/help.html#working_with_screens/working_with_components
Let me know if this works for you.