US Patent 12124762 Real time collaboration over multiple locations

A first or second computer viewing a virtual canvas may be a host computer for a live source object requiring authorization between a host and a non-host computer by creating a live source window for the live source object requiring authorization (ARLSW) within the virtual canvas on the host computer, sending metadata information for the ARLSW to the non-host computer so that the ARLSW is at the same location on the virtual canvas for the first and second computers, and streaming the live source object requiring authorization to the ARLSW from the host computer to the non-host computer. When the host computer for the ARLSW leaves the virtual canvas and no other non-host computer for ARLSW in the canvas is known to have authorization to view the ARLSW, a placeholder screen is displayed in the ARLSW on the virtual canvas.