enso/app/gui2/shortcuts.md

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## General Assumptions
#### The <kbd>Meta</kbd> key.
The <kbd>Meta</kbd> key was introduced to make the shortcuts consistent across
platforms. It is defined as <kbd>Command ⌘</kbd> on macOS, and as <kbd>Ctrl</kbd>
on Windows and Linux.
#### Mouse Buttons
Shortcuts are designed to work well with both the mouse and the touchpad.
- <kbd>LMB</kbd> corresponds to Left Mouse Button
- <kbd>MMB</kbd> corresponds to Middle Mouse Button
- <kbd>RMB</kbd> corresponds to Right Mouse Button
## Graph Editor
#### General Shortcuts
| Shortcut | Action |
| --------------------------------------------------------------------------------- | ------------------------------ |
| <kbd>Escape</kbd> | Cancel current interaction |
| <kbd>Meta</kbd>+<kbd>`</kbd> | Show/hide Code Editor |
| <kbd>Meta</kbd>+<kbd>D</kbd> | Show/hide Documentation Editor |
| <kbd>Meta</kbd>+<kbd>,</kbd> | Show Settings |
| <kbd>Meta</kbd>+<kbd>/</kbd> | Show About Window |
| <kbd>Meta</kbd>+<kbd>Z</kbd> | Undo last action |
| <kbd>Meta</kbd>+<kbd>Y</kbd> or <kbd>Meta</kbd> + <kbd>Shift</kbd> + <kbd>Z</kbd> | Redo last undone action |
#### Navigation
| Shortcut | Action |
| ------------------------------------------------- | ------------------------------------ |
| Drag gesture (two fingers) | Pan the scene. |
| Pinch gesture (two fingers) | Zoom the scene. |
| <kbd>MMB</kbd> drag | Pan the scene. |
| <kbd>RMB</kbd> drag | Zoom the scene. |
| <kbd>LMB</kbd> double press component | Step into the component. |
| <kbd>LMB</kbd> double press background | Step out of the current component. |
| <kbd>Meta</kbd>+<kbd>E</kbd> | Step in the last selected component. |
| <kbd>Meta</kbd>+<kbd>Shift</kbd>+<kbd>E</kbd> | Step out of the current component. |
| <kbd>Meta</kbd> + <kbd>Shift</kbd> + <kbd>A</kbd> | Zoom to selected components. |
#### Component Layout
| Shortcut | Action |
| ------------------------------------------ | ---------------------------------------------------------------------- |
| <kbd>LMB</kbd> drag non-selected component | Move the component to new position (dragging do not modify selection). |
| <kbd>LMB</kbd> drag selected component | Move all selected components the component to new positions. |
#### Component Selection
| Shortcut | Action |
| ------------------------------------------------------------------------------------ | ----------------------------------------------------------- |
| <kbd>LMB</kbd> click component | Deselect all components. Select the target component. |
| <kbd>LMB</kbd> click background | Deselect all components. |
| <kbd>LMB</kbd> drag background | Select components using selection-box. |
| <kbd>Shift</kbd> + <kbd>LMB</kbd> click component | Add / remove component to the selection group. |
| <kbd>Shift</kbd> + <kbd>LMB</kbd> drag background | Add / remove components to the selection group. |
| <kbd>Meta</kbd> + <kbd>A</kbd> | Select all components. |
| <kbd>Escape</kbd> | Deselect all components (if not in a mode, like edit mode). |
| <kbd>Meta</kbd> + <kbd>Shift</kbd> + <kbd>LMB</kbd> click component | Add component to the selection group. |
| <kbd>Meta</kbd> + <kbd>Shift</kbd> + <kbd>LMB</kbd> drag background | Add components to the selection group. |
| <kbd>Shift</kbd> + <kbd>Alt</kbd> + <kbd>LMB</kbd> click component | Remove component to the selection group. |
| <kbd>Shift</kbd> + <kbd>Alt</kbd> + <kbd>LMB</kbd> drag background | Remove components to the selection group. |
| <kbd>Meta</kbd> + <kbd>Shift</kbd> + <kbd>Alt</kbd> + <kbd>LMB</kbd> click component | Inverse component selection. |
| <kbd>Meta</kbd> + <kbd>Shift</kbd> + <kbd>Alt</kbd> + <kbd>LMB</kbd> drag background | Inverse components selection. |
#### Component Browser
| Shortcut | Action |
| ------------------------------------------------ | ----------------------------------------------------------------------------- |
| <kbd>Enter</kbd> | Open component browser |
| <kbd>Tab</kbd> | Apply currently selected suggestion (insert it without finishing the editing) |
| <kbd>Enter</kbd> or <kbd>LMB</kbd> on suggestion | Accept currently selected suggestion (insert it and finish editing) |
| <kbd>Meta</kbd> + <kbd>Enter</kbd> | Accept raw input and finish editing |
| <kbd></kbd> | Move selection up |
| <kbd></kbd> | Move selection down |
#### Component Editing
| Shortcut | Action |
| ------------------------------------------------- | ------------------------------------- |
| <kbd>Meta</kbd> + <kbd>C</kbd> | Copy selected components. |
| <kbd>Meta</kbd> + <kbd>V</kbd> | Paste copied components. |
| <kbd>BackSpace</kbd> or <kbd>Delete</kbd> | Remove selected components. |
| <kbd>Meta</kbd>+<kbd>G</kbd> | Collapse (group) selected components. |
| <kbd>Meta</kbd>+<kbd>LMB</kbd> | Start editing component expression. |
| <kbd>Meta</kbd> + <kbd>Shift</kbd> + <kbd>C</kbd> | Change color of selected components. |
#### Visualization
| Shortcut | Action |
| ----------------------------------- | ----------------------------------------------------------------- |
| <kbd>Space</kbd> | Toggle visualization visibility of the selected component. |
| <kbd>Meta</kbd> hold | Preview visualization of the hovered component (hide on release). |
| <kbd>Shift</kbd> + <kbd>Space</kbd> | Toggle visualization fullscreen mode. |
| <kbd>Escape</kbd> | Exit visualization fullscreen mode. |
| <kbd>Meta</kbd> + <kbd>Space</kbd> | Cycle visualizations of the selected component. |
| <kbd>F1</kbd> | Open documentation view |