Ability to upload multiple video Proofs for short web advertisement animations

Currently we have an inhouse design team utilizing Proof to get approvals on animated web advertising. However, these ads have to be built at several unique sizes and all of them need signed off on. Since the only way for the approvers to see the animations is through a video proof, the designers are forced to upload all these sizes one at a time. This is making the tool more time consuming for them and also more frustrating for the approvers who have to open all these separate proofs for these very small, very similar pieces of art. Any way to address this would be appreciated.