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### 15.7 The very busy C-c C-c key

The key `C-c C-c` has many purposes in Org, which are all mentioned scattered throughout this manual. One specific function of this key is to add tags to a headline (see Tags). In many other circumstances it means something like “Hey Org, look here and update according to what you see here”. Here is a summary of what this means in different contexts.

- - If there are highlights in the buffer from the creation of a sparse tree, or from clock display, remove these highlights.
- - If the cursor is in one of the special `#+KEYWORD` lines, this triggers scanning the buffer for these lines and updating the information.
- - If the cursor is inside a table, realign the table. This command works even if the automatic table editor has been turned off.
- - If the cursor is on a `#+TBLFM` line, re-apply the formulas to the entire table.
- - If the current buffer is a capture buffer, close the note and file it. With a prefix argument, file it, without further interaction, to the default location.
- - If the cursor is on a `<<<target>>>`, update radio targets and corresponding links in this buffer.
- - If the cursor is in a property line or at the start or end of a property drawer, offer property commands.
- - If the cursor is at a footnote reference, go to the corresponding definition, and vice versa.
- - If the cursor is on a statistics cookie, update it.
- - If the cursor is in a plain list item with a checkbox, toggle the status of the checkbox.
- - If the cursor is on a numbered item in a plain list, renumber the ordered list.
- - If the cursor is on the `#+BEGIN` line of a dynamic block, the block is updated.
- - If the cursor is at a timestamp, fix the day name in the timestamp.

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