I think that it would be helpful for it to show how much your influence has dropped in a port on the daily update, so that we cam see how much we need to replace each day.

I second this.

The daily update is like having a secretary that throws reports at you and port influence seems to be something that you'll definitely get your slave... uh.. scribe... to keep an eye on

For technical/optimization reasons this will be avoided for now. We will however create a report page which will list your influence in each port so you will be able to track down adjustments alone.