| 1. |
Press the CTRL+TAB keys. It will show a dialog box listing the current open files. |
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| 2. |
Click on the Open Files icon in the top right of the Code Editor. This will open a list of currently open files. |
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| 3. |
Click on the name of the file in the list of the tab immediately above the Code Editor. |
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| 4. |
Click on the Navigate Backward or Navigate Forward buttons in the standard toolbar. |
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| 5. |
Press CTRL+-, or CTRL+SHIFT+- |
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