In this poster, we present RealityDrop, a novel multimodal framework that uses Mixed Reality (MR) technology to manipulate, display, and transfer virtual content across different display systems. Employing MR as the centre of control, RealityDrop affords concise information dissemination among diverse collaborators, through varied representations that best fit each display system's unique features using `superhuman' gaze and gesture interactions. Three multimodal interaction techniques, a customised content interpreter, and two cross-system interfaces are incorporated for fluent content manipulation and presentation.