Undo and Redo
If you made a mistake in writing your code, there is always an easy way to fix it. The Undo button can be located on the toolbar along the top left of the window. Along with this, you can also do Ctrl+Z as you have learned with other programs. The undo function can go as far back as the last save you have made.
Likewise, there is a Redo button as well. When you have undone something and wish to undo the undo, you can press redo. For example, if you were to undo placing a block that block would then be gone. Pressing redo would put the block back.
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