Xcode

Command Click for Features

Hold Command while Left-clicking a function, to access features associated with the clicked function.

For example "Jump to Definition" will jump to the function selected.
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You can also Command+Left-click variables to to access useful features, like "Edit All in Scope" will allow you to rename the variable across the code.
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"Callers" list where the function is being called from. If only one caller is used, the cursor will jump to that caller.
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Get list of zPositions

Sometimes determining the order of your nodes can be tricky to keep certain graphics from overlapping graphics that should be more in front of other graphics.

An easy way to check all your zPositions, is to right-click the "zPosition" property and choose "Find Selected Text in Workspace.

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This will provide a nice list of all your zPositions and their numeric value.
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