I'm sorry, but I cannot find any information on creating a new notebook tab in Azure notebooks on Minecraft Education Edition. However, you can find information on the available shortcut keys within the notebook by selecting View on the notebook ribbon, and then selecting Keybindings. The resource guide also provides shortcut keys for different modes, including command mode and edit mode. As for saving and distributing notebooks, teachers can save the notebooks they create and distribute them to their students in Azure notebooks.
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