When clicking "Play" on any of the nodes or on the "Play All" button on the top right, all of those buttons on the nodes should be disabled, and "Play All" button should instead show the "Pause" icon. When clicking on the Pause button, the graph execution state should be paused, i.e. no data should be processed on the backend anymore. When clicking on the Pause button, all buttons should go back to their original Play buttons, and the graph execution should resume again where it left off.
When clicking "Play" on any of the nodes or on the "Play All" button on the top right, all of those buttons on the nodes should be disabled, and "Play All" button should instead show the "Pause" icon. When clicking on the Pause button, the graph execution state should be paused, i.e. no data should be processed on the backend anymore. When clicking on the Pause button, all buttons should go back to their original Play buttons, and the graph execution should resume again where it left off.