Multiple User Accounts on a Business Credit Card

Our business credit card is through BofA. They have a main account for the payments and then subaccounts for each authorized user. If I just se-up one credit card account, I am unable to import the user transactions via direct or import a web connect statement as the main credit card account in online enabled and it won't allow any additional imports (acts as though I need to add a new bank account).

I could for the account which posts the fees and payments and then sub accounts for each card (painful). But how would I "close" the sub-accounts into the parent account every month, othwerise my financials would look very strange.