I just changed my fund choices, see below for an email they sent me.
Please complete an Investment Direction Change form to change the portfolio on your inVEST account. The link provided below will download this form.
http://www.virginia529.com/forms/general/rollover_and_investment_direct_form.pdf
Please keep in mind the IRC 529 regulations allows a Participant one change per calendar year for inVEST, CollegeAmerica, and CollegeWealth unless there is a change of beneficiary. Changes for multiple accounts will need to be submitted and processed at the same time in order to comply with the once per calendar year rule. All transactions for a inVEST account processes in accordance with the Pending Settlement Period.