LOL Disney probably will not do that as people will check to see what they've spend and realize "oh crap I'd better throttle back a bit!!!!".
I've called up from my room to the front desk to ask what the balance was on my account. If you're just wanting a total cost, so much easier then standing in line and having them print off the folio. But the folio will show the dates and the location of the charge. Also a note with using the gift cards to pay at the end of your stay. I don't remember how much is the trigger but they will charge your card on file when the amount hits, which could be mid trip. You'd hate to have all the gift cards sitting there and you didn't apply and now you have the charge on your credit card. I think it's pretty high at $1500 for deluxe but for the value I think it might be lower maybe $750 and I believe moderate is lower too (at least they had different tiers in the past).
The one time I used my Disney gift cards to put onto my room charges, I made sure to go down to the front desk every few days and apply the cards. This was before I knew about combining cards and it was such a pain. I wanted to just put down all my gift cards at once and they would not take them as they said they couldn't refund the money if I didn't spend enough. Even though I insisted that was fine as I knew with all our food we'd be at the limit I wanted to put down, they still wouldn't.