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docs(keymap): add select_all_children (#11972)

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Co-authored-by: Sam Kagan <skagan@nrao.edu>
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Sam Kagan 1 day ago committed by GitHub
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book/src/keymap.md
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@ -112,42 +112,43 @@ Normal mode is the default mode when you launch helix. You can return to it from
### Selection manipulation
| Key | Description | Command |
| ----- | ----------- | ------- |
| `s` | Select all regex matches inside selections | `select_regex` |
| `S` | Split selection into sub selections on regex matches | `split_selection` |
| `Alt-s` | Split selection on newlines | `split_selection_on_newline` |
| `Alt-minus` | Merge selections | `merge_selections` |
| `Alt-_` | Merge consecutive selections | `merge_consecutive_selections` |
| `&` | Align selection in columns | `align_selections` |
| `_` | Trim whitespace from the selection | `trim_selections` |
| `;` | Collapse selection onto a single cursor | `collapse_selection` |
| `Alt-;` | Flip selection cursor and anchor | `flip_selections` |
| `Alt-:` | Ensures the selection is in forward direction | `ensure_selections_forward` |
| `,` | Keep only the primary selection | `keep_primary_selection` |
| `Alt-,` | Remove the primary selection | `remove_primary_selection` |
| `C` | Copy selection onto the next line (Add cursor below) | `copy_selection_on_next_line` |
| `Alt-C` | Copy selection onto the previous line (Add cursor above) | `copy_selection_on_prev_line` |
| `(` | Rotate main selection backward | `rotate_selections_backward` |
| `)` | Rotate main selection forward | `rotate_selections_forward` |
| `Alt-(` | Rotate selection contents backward | `rotate_selection_contents_backward` |
| `Alt-)` | Rotate selection contents forward | `rotate_selection_contents_forward` |
| `%` | Select entire file | `select_all` |
| `x` | Select current line, if already selected, extend to next line | `extend_line_below` |
| `X` | Extend selection to line bounds (line-wise selection) | `extend_to_line_bounds` |
| `Alt-x` | Shrink selection to line bounds (line-wise selection) | `shrink_to_line_bounds` |
| `J` | Join lines inside selection | `join_selections` |
| `Alt-J` | Join lines inside selection and select the inserted space | `join_selections_space` |
| `K` | Keep selections matching the regex | `keep_selections` |
| `Alt-K` | Remove selections matching the regex | `remove_selections` |
| `Ctrl-c` | Comment/uncomment the selections | `toggle_comments` |
| `Alt-o`, `Alt-up` | Expand selection to parent syntax node (**TS**) | `expand_selection` |
| `Alt-i`, `Alt-down` | Shrink syntax tree object selection (**TS**) | `shrink_selection` |
| `Alt-p`, `Alt-left` | Select previous sibling node in syntax tree (**TS**) | `select_prev_sibling` |
| `Alt-n`, `Alt-right` | Select next sibling node in syntax tree (**TS**) | `select_next_sibling` |
| `Alt-a` | Select all sibling nodes in syntax tree (**TS**) | `select_all_siblings` |
| `Alt-e` | Move to end of parent node in syntax tree (**TS**) | `move_parent_node_end` |
| `Alt-b` | Move to start of parent node in syntax tree (**TS**) | `move_parent_node_start` |
| Key | Description | Command |
| ----- | ----------- | ------- |
| `s` | Select all regex matches inside selections | `select_regex` |
| `S` | Split selection into sub selections on regex matches | `split_selection` |
| `Alt-s` | Split selection on newlines | `split_selection_on_newline` |
| `Alt-minus` | Merge selections | `merge_selections` |
| `Alt-_` | Merge consecutive selections | `merge_consecutive_selections` |
| `&` | Align selection in columns | `align_selections` |
| `_` | Trim whitespace from the selection | `trim_selections` |
| `;` | Collapse selection onto a single cursor | `collapse_selection` |
| `Alt-;` | Flip selection cursor and anchor | `flip_selections` |
| `Alt-:` | Ensures the selection is in forward direction | `ensure_selections_forward` |
| `,` | Keep only the primary selection | `keep_primary_selection` |
| `Alt-,` | Remove the primary selection | `remove_primary_selection` |
| `C` | Copy selection onto the next line (Add cursor below) | `copy_selection_on_next_line` |
| `Alt-C` | Copy selection onto the previous line (Add cursor above) | `copy_selection_on_prev_line` |
| `(` | Rotate main selection backward | `rotate_selections_backward` |
| `)` | Rotate main selection forward | `rotate_selections_forward` |
| `Alt-(` | Rotate selection contents backward | `rotate_selection_contents_backward` |
| `Alt-)` | Rotate selection contents forward | `rotate_selection_contents_forward` |
| `%` | Select entire file | `select_all` |
| `x` | Select current line, if already selected, extend to next line | `extend_line_below` |
| `X` | Extend selection to line bounds (line-wise selection) | `extend_to_line_bounds` |
| `Alt-x` | Shrink selection to line bounds (line-wise selection) | `shrink_to_line_bounds` |
| `J` | Join lines inside selection | `join_selections` |
| `Alt-J` | Join lines inside selection and select the inserted space | `join_selections_space` |
| `K` | Keep selections matching the regex | `keep_selections` |
| `Alt-K` | Remove selections matching the regex | `remove_selections` |
| `Ctrl-c` | Comment/uncomment the selections | `toggle_comments` |
| `Alt-o`, `Alt-up` | Expand selection to parent syntax node (**TS**) | `expand_selection` |
| `Alt-i`, `Alt-down` | Shrink syntax tree object selection (**TS**) | `shrink_selection` |
| `Alt-p`, `Alt-left` | Select previous sibling node in syntax tree (**TS**) | `select_prev_sibling` |
| `Alt-n`, `Alt-right` | Select next sibling node in syntax tree (**TS**) | `select_next_sibling` |
| `Alt-a` | Select all sibling nodes in syntax tree (**TS**) | `select_all_siblings` |
| `Alt-I`, `Alt-Shift-down`| Select all children nodes in syntax tree (**TS**) | `select_all_children` |
| `Alt-e` | Move to end of parent node in syntax tree (**TS**) | `move_parent_node_end` |
| `Alt-b` | Move to start of parent node in syntax tree (**TS**) | `move_parent_node_start` |
### Search

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