Duplicate a selection

Duplicate copies the selected entity — or every entity in a multi-selection — and drops the copies a short distance offset from the originals so you can see and grab them. A multi-selection duplicate pushes one undo step, so Ctrl+Z reverses the whole batch in one go.

Single-entity duplicate

Right-click an entity on desktop, or long-press it on mobile, and pick the Duplicate entry from the canvas context menu. The wording is type-specific (Duplicate Wall for walls, plain Duplicate for fixtures, openings, tape dims, and annotations), and the copy lands offset from the original so you can immediately tell them apart.

For openings (doors and windows), the duplicate searches along the host wall for the nearest free gap. If the wall is too crowded to fit another copy, a snackbar explains why and nothing is added.

Multi-selection duplicate

When more than one entity is selected and you right-click — or long-press — any one of them, the context menu leads with Duplicate Selection (N items) where N is the count.

Picking it copies every entity in the selection in one operation:

• Walls get fresh IDs and land offset from their originals.
• Doors and windows hosted on duplicated walls follow their walls to the new positions, so the openings stay attached.
• Fixtures, guides, annotations, and tape dims copy with the same offset.

After the duplicate commits, the new copies become the active selection — so the next thing you drag, types, or deletes acts on the new set, not the originals.

What doesn't have a duplicate shortcut

There's no Ctrl+D shortcut for duplicate in v1. Ctrl+D is intentionally swallowed by the editor so the browser's "add bookmark" dialog doesn't pop up, but it doesn't trigger a duplicate. Use the right-click or long-press menu.

Tips

• Build a layout once, multi-select everything (Ctrl+A on desktop), and duplicate to start a second similar room. Drag the copy as a group to wherever it belongs.
• Multi-select walls + their openings together before duplicating — openings only follow walls that are also in the selection. If you multi-select an opening WITHOUT its host wall, that opening is silently skipped from the duplicate (positioning has no meaning without the wall to host it). To duplicate an opening on its own, use the single-entity right-click → Duplicate path instead, which probes the same wall for a free gap.
• The whole batch undoes in one step. Press Ctrl+Z once to remove every duplicated entity together.
• Right-click works on desktop, long-press works on mobile. Both surface the same Duplicate entries.