Contact Portfolio

When using Contact Portfolio, if we add a date custom field, is that date able to be updated automatically when they upload their portfolio item? Also, are you able to make a custom field linked to both the Contact and the Contact Portfolio? Both of these things would be handy, as then you can see at a glance if someone has submitted the portfolio item you may be waiting on, on their profile page, instead of going into the Portfolio section. If the custom field can't be linked to both, is there any workflow that you can use to automatically populate a custom field when a portfolio item is uploaded?