YouTube CEO Neal Mohan. Kevin Mazur/Getty YouTube is adding a new tool to let creators change thumbnails for videos in different languages. It's part of a push by YouTube to help videos travel globally. AI-powered dubbing is a top priority among YouTube stars like MrBeast. YouTube is releasing a new feature to help creators spread their content around the world.The tool, which will be rolling out in the next few days, lets creators upload different thumbnails for each video that's dubbed into a ...