Mirror and offset
Reflect selected objects across an axis or create a parallel outline beside a path.
Mirror reflects a selection around an axis. Offset creates a parallel outline beside supported existing geometry. They have different selection workflows: choose the objects for Mirror, or hover an eligible outline for Offset.
Mirror a selection
Select the objects and choose Mirror. Define the mirror axis by a drag or two points. Check Keep original before applying: it determines whether the original is retained alongside the mirrored result.
Use a quick reflection
The Mirror guide also offers Horizontal ↔ and Vertical ↕ for its quick reflection modes. Use the displayed mode and preview to check the intended axis. These controls are separate from the whole-object Flip left-right and Flip front-back commands.
Preview an Offset
Choose Offset, hover a supported outline and inspect the parallel preview. Set Offset Distance in the Tool Guide or use supported typed input. A value without a unit uses the project unit system; you can include an explicit unit.
Choose the corner style and apply
Use Round, Miter or Bevel for the offset join where available. The hovered side determines the proposed offset. Click to accept only after checking the preview. Unsupported geometry or an unusable offset shows a reason.
Cancel or undo
Press Esc to cancel the active interaction. Undo reverses a committed mirror or offset. A mirrored copy and an in-place reflection have different results, so check Keep original first.