Good afternoon Jared,
I went through our source code because I thought we supported this behavior. However, there are about seven different modals that can display on that page and the one you are asking for is not one of them. We do show a modal with the information you are requesting after the transfer succeeds, but not before submitting it to the server.
We'd hate for you to have to re-create the whole Funds Transfer workflow for this one modal, but at the moment we don't have a different workaround.
Kris
