Operations

Desktop (Mouse)

Action	Effect
Left-click	Pick a point / select an entity
Left-drag	Box-select / drag an entity
Scroll wheel	Zoom the view
Middle-button or Shift + Middle-button drag	Pan the view
Right-click	Outside a command: show the context menu; inside a command: acts as Enter to confirm
Esc	Cancel the current command
Enter / Space	Confirm the current step or repeat the last command
Ctrl + Z	Undo
Ctrl + Y	Redo

Mobile (Touch)

Browse Mode

The following gestures are supported when viewing a drawing:

Gesture	Effect
One-finger pan	Touch the drawing area with one finger and move to change the drawing position
Two-finger pan	Touch the drawing area with two fingers, keeping the distance between them constant, and move to change the drawing position
Pinch	Change the distance between two fingers to zoom in or out

Edit Mode

In drawing and editing states, the following are supported in addition to the browse gestures:

Gesture	Effect
One-finger tap	While drawing, tap to create a point; with no active command, tap an object to select it
One-finger long-press + slide	Window / crossing box-select
One-finger tap + slide	When creating an entity, tap to mark a point then slide to re-adjust that point's position; when editing an object, tap a selected grip and drag to perform a grip stretch or scale
Tap point input	Tap the screen with one finger—no displacement, quick lift (less than 0.5 seconds)—to input a point
Drag point input	Long-press the screen with one finger for more than 0.5 seconds to enter drag selection mode, move to the target position and lift to complete the input

Box-Select Direction

As in AutoCAD, the direction of the box-select determines the selection mode:

• Left to right: Window selection—only entities entirely within the rectangle are selected
• Right to left: Crossing selection—entities intersecting the rectangle are selected