Here's how I did this.

1. Create a "Prepaid Expense" account with sub-accounts if you'd like with the type "Current Assets."

2. Create a bill using the Prepaid account at the Categorie.  This will not show up in your P&L

3. Make a bill payment against that bill as you would normally do.

Now, those payments will not show up under your P&L.  You'll need to create a Journal entry to move money out of the expense account into the prepaid account.

4. Create a journal entry to credit the Prepaid.  Now, here's the trick.  You can split the DEBITS against different locations.

What do you think?  Good? Bad? Ugly?   It works for me.