So, Symbols cannot have different configurations, this would be a Plug In object (which is saved with red text in the resource manager)
If I'm following correctly, you would have one symbol that was the same everywhere, but would want the position of the red box to move?
For this, your Marionette script would place the static symbol object first and then layer the red box over the top in whatever position is defined with your option choice.
I'm not sure that I am following the full goal correctly, if you could supply a simple file with a couple of the end results you're looking for I can probably make better sense of it.