Keyboard Shortcuts

All shortcuts use Ctrl on Windows and Linux; on macOS, Cmd works interchangeably. Most single-key shortcuts are suppressed while you are typing in a text field or while a dialog is open, so they never fire accidentally mid-edit.

File

These work everywhere, even while a field or dialog has focus. The same commands are available in the ☰ file menu.

Shortcut	Action
Ctrl+S	Save the current harness file
Ctrl+Shift+S	Save As — pick a new file name/location
Ctrl+O	Open a harness file

See Collaboration for saving, sharing, and cloud sync.

Editing

Active whenever you are not typing in a field and no dialog is open.

Shortcut	Action
Ctrl+Z	Undo
Ctrl+Shift+Z or Ctrl+Y	Redo
Ctrl+C	Copy the selected connectors/terminals/splices, notes, or devices
Ctrl+X	Cut — copy the selection, then delete it
Ctrl+V	Paste from the clipboard

Note

If you have text highlighted anywhere in the app (a table cell, the sidebar), Ctrl+C and Ctrl+X fall through to the native text copy instead of copying canvas objects.

Copy and cut act on the current box selection when you have one; otherwise they act on the single selected node, note, or device.

Quick add and view switching (rebindable)

These five single-key shortcuts are the ones you can customize (see Rebinding hotkeys below). Defaults:

Key (default)	Action
C	Add connector — opens the New connector dialog
T	Add terminal — opens the New terminal dialog
S	Add splice — opens the New splice dialog
1	Switch to Schematic view
2	Switch to Layout view

In split view, the view-switch keys change the first (left) pane. The other pane keeps whatever view it had — use its pane switcher buttons to change it. For what each view does, see Schematic and Layout.

Canvas and selection

Input	Action
Delete or Backspace	Delete the selected nodes and connections
Esc	Close an open context menu
Left-drag on empty canvas	Box select — anything the box touches is included
Middle-drag or Space+drag	Pan the canvas
Right-click	Open the context menu (on the canvas, a node, or a connection)
Scroll wheel	Zoom

Dialogs, fields, and search

Shortcut	Where	Action
Enter	Quick-add dialogs	Submit the dialog (unless a button has focus)
Esc	Quick-add dialogs	Close without adding
Enter	Inline text fields (labels, notes, harness names)	Commit the edit
Esc	Inline text fields	Revert to the previous value
Enter	Search box (sidebar)	Jump to the first result
Esc	Search box	Clear the query and leave the box

The search box matches node labels, part numbers, signal names, and note text — see The interface for where it lives.

Rebinding hotkeys

The five quick-add and view-switch keys are rebindable; everything else (Ctrl+S, Ctrl+Z/Ctrl+Y, Delete, and friends) is fixed.

1. Open ☰ ▸ Preferences….
2. Scroll to the Hotkeys section.
3. Click the key button next to an action — it changes to press a key….
4. Press the new key. Press Esc instead to cancel recording.

Rules the rebinder enforces:

• Single visible character only — one letter, digit, or symbol. Combinations with Ctrl, Alt, or Cmd are rejected (Single letter/digit keys only.).
• No duplicates — a key already bound to a different action is rejected with a "…" is already bound. message.
• Keys are case-insensitive (stored lowercase).

Click Reset hotkeys in the same section to restore the defaults shown in the table above.

Tip

Hotkey bindings — like every setting in Preferences… — are saved on your machine, not in the harness file. Rebinding keys never dirties your document or affects collaborators who open the same file.