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Select, multi-select, copy, paste, and delete

Drag a box or tap to add items, use the blue bar to copy, delete, line up or flip the group, paste from the Clipboard pill (also in another design), and use the chooser when items are stacked.

5 minUpdated 2026-10-28

Selecting sounds trivial until a plan has forty pieces in it. RoomSketch3D has one set of rules for all of them: tap a thing to select it, use Select multiple to gather several, and when two things share a spot, a chooser lets you pick by name.

Once several pieces of furniture are selected, Arrange on the blue bar lines them up in a row or a column, or flips the whole group left to right or top to bottom, so a dining set or a seating corner mirrors in one tap.

Multi-select is not limited to furniture. Interior walls, pillars, bulkheads, staircases, elevators, vaulted-ceiling areas, and skylights can be gathered into the same selection and moved, copied, or deleted together. Outside walls never move as part of a group, but a box can take them for one job: copying a room that sticks out from the house (a bay, a porch, a wing) into another design.

Whatever you copy waits in a Clipboard pill on the plan, with a count, until you paste it, in this design or in another one you open next.

Step by step

  1. 1

    Select one thing

    Tap any piece — furniture, a door, a window, an interior wall, a staircase. Its inspector opens along the bottom (size, rotation, name, options) and a small bar appears right beside the piece with Duplicate and a red Delete, so you don't have to hunt for either.

    One tap: inspector below, Duplicate/Delete bar beside the piece.
  2. 2

    Select multiple

    Tap the toolbar's Select multiple button (its tooltip reads drag a box, or click items). Now drag a box across the plan — start on empty canvas — or tap items one by one to add or remove them. A bar shows N selected — drag to move; drag any selected piece and the whole group moves together.

    Drag a box from empty space; tap to add more.
  3. 3

    Structure comes too

    If the box crosses an interior wall, a pillar, or a staircase, it joins the selection — you'll see it counted in the bar. Move the mix as one, or delete a whole zone in a single step. Outside walls are never moved or deleted with the group; tap an outer wall on its own to move it, type its length, or split it (see Edit walls on the plan). The one exception is copying: an outside wall whose both ends are inside the box joins the selection so a projecting room can be copied (see below).

    Interior walls and structure are selectable alongside furniture.
  4. 4

    Copy, paste, delete

    With a selection active, tap Copy selected items (or Ctrl/Cmd+C), then paste with Ctrl/Cmd+V or the Paste items button. Copies land in clear space — never on a wall, a column, or on top of the originals — and arrive selected so you can drag them straight into place. Delete selected items removes the whole group; Undo brings it back.

    Pasted copies land in clear space, selected and ready to drag.
  5. 5

    Find your copies: the Clipboard pill

    There is no clipboard window to open. As soon as you copy, a Clipboard pill appears on the plan with the count, e.g. Clipboard (6): bottom-right next to the 3D preview pill and the compass on a computer, top-right on a phone or tablet. Tap it for Paste N items (the copies land in the middle of your view, selected and ready to drag) or Clear clipboard. The pill disappears when nothing is copied, and while the full 3D view is open.

    Copied something? It waits in the Clipboard pill.
  6. 6

    Paste into another design

    What you copy stays on the clipboard when you leave the editor. Copy in one design, go back to Home, open the other design, and tap the Clipboard pill → Paste. Furniture, interior walls, stairs, pillars and the rest all make the trip, keeping their positions relative to each other. The clipboard is kept on the device you copied on, so paste on the same phone, tablet or computer (and browser). It holds one copy at a time: copying something new replaces it.

    On a phone the pill is top-right; tap it to paste.
  7. 7

    Copy a room that sticks out: bay, porch, wing

    To bring a whole projecting room into another design, box it so both ends of each of its outside walls are inside the box, tap Copy (the note reads e.g. Room copied: 3 walls and 3 items), open the other design and tap Clipboard → Paste room. The room floats in as one piece; drag it onto an outside wall and it snaps on, turned to stand outside the plan. Slide it, or type the distance from either end of the wall, then tap Done. The outline grows round it and its windows, doors, interior walls and furniture keep their places. Full walkthrough: Copy a room from one design into another.

    A pasted room snapped onto an outside wall: slide, then Done.
  8. 8

    Arrange: line up or flip the group

    With two or more pieces of furniture selected, the blue bar shows Arrange. Tap it for four choices: Line up in a row, Line up in a column, Flip group left to right and Flip group top to bottom. (These used to be two small icons with no labels on the bar.) Arrange works on the furniture in the selection; interior walls and other structure in the same selection stay where they are.

    Arrange, on the blue bar once two or more pieces are selected.
  9. 9

    Flip the group left to right

    Tap Arrange → Flip group left to right. The group mirrors in place, on the same patch of floor: chairs on the left of a table end up on its right, a sideboard on the left wall moves to the right wall, and every piece is turned so it still faces the right way (the chairs still face the table). The spacing between pieces doesn't change, and pieces with a hand, like an L-shaped sectional, mirror too. Nothing piles up.

    Flip group left to right: same spacing, chairs still facing the table.
  10. 10

    Or top to bottom

    Flip group top to bottom does the same up and down: the armchair at the top end of the table moves to the bottom end, still facing the table, and whatever was near the bottom of the group moves to the top. Left and right mean left and right as you see the plan: if you've turned the plan with Plan Settings → Rotation, the flip follows the screen, not the compass.

    Flip group top to bottom: the armchair now sits at the other end.
  11. 11

    Line up in a row or a column

    Line up in a row puts the selected pieces on one straight line across the plan; Line up in a column puts them on one line up and down. If they all face the same way, they line up by their backs, so pieces of different depths stay flush against the same wall. Pieces that would land on top of each other are laid out side by side, keeping the gaps they had. A piece hung on the wall above another (a wall cabinet over a base cabinet) centres over it instead of being pushed aside.

  12. 12

    Undo a flip or line-up

    One Undo (toolbar arrow or Ctrl/Cmd+Z) puts the whole group back where it was, and the pieces stay selected, so you can go straight to another Arrange choice. (Only a piece the undo removes, say one you had just added, drops out of the selection.)

  13. 13

    Pick the right one when items overlap

    Tap where two or more things sit on top of each other — a rug under a coffee table, a window behind a fireplace, a pillar over a staircase, two interior walls meeting at a T — and a Select item chooser lists each one by name. Pick the one you meant. The same chooser appears for wall-mounted pieces like a Murphy bed or an awning over a window.

    Stacked items? The chooser lists them by name.
  14. 14

    Back to single selection

    Press Escape or tap Exit select mode. Escape also closes the inspector for any selected structure (soffit, vault, elevator, bay window, skylight, floor opening) the same way it does for furniture.

Tips

Start the box on empty floor

Dragging from on top of a piece moves that piece instead. Begin the marquee just outside the plan or in an empty corner.

Copy a whole zone

Box-select a reading corner — chair, lamp, rug, side table — copy it, and paste it into the guest room. Then nudge with the arrow keys.

Arrow keys move only the selection

Handy when a big piece (a bed) makes dragging grab the wrong thing: select, then nudge with the arrows.

Mirror a whole corner

Box-select a dining set, a desk with its chair and lamp, or a sofa grouping, then Arrange → Flip group left to right to try it on the other side of the room in one tap. Don't like it? One Undo.

Common mistakes

Expecting exterior walls to move with the box

They never move or delete as part of a group. Tap an outer wall on its own to drag it in or out, type its length, or split it right on the plan. A box only takes outside walls for copying a projecting room, and only walls whose both ends are inside it.

Pressing Ctrl/Cmd+V to paste a copied room

The shortcut, the blue bar's paste button and the long-press Paste items paste furniture and interior structure. A copied room (outside walls included) pastes only from the Clipboard pill → Paste room.

Pasting and losing the copies

They land in clear space, which may be off to one side of a crowded room. They arrive selected — look for the N selected bar and drag.

Flipping the whole plan when you meant one group

Plan Settings → Rotation → Flip plan mirrors everything: walls, doors, windows and all furniture. To mirror just a few pieces, select them and use Arrange → Flip group instead.

Not checking the doorway after a flip

A flipped group keeps its spacing but can land a piece in a door swing or in front of a window. Glance at Flow Check after flipping; it flags a blocked door.

Flipping with a locked piece in the group

If any selected piece is locked, nothing moves and a message says it's locked in place. Unlock it (select it and tap the padlock), then flip. See lock wall lengths and furniture.

Frequently asked questions

Can I select interior walls together with furniture?

Yes. Box-select or tap to add interior walls, pillars, bulkheads, stairs, elevators, vaulted ceilings, and skylights along with furniture, then move, copy/paste, or delete them together. Exterior walls stay put.

Where do pasted items go?

Into clear space near the originals — never on a wall or column and never stacked on the source pieces — and they arrive selected so you can drag them immediately.

Can I copy a whole room — a bay, a porch, a wing — into another design?

Yes. Tap Select multiple and drag a box round the projecting room so both ends of each of its outside walls are inside the box. Its outside walls come along with their windows and doors, plus any interior walls and furniture you boxed with them. Tap Copy, open the other design, tap the Clipboard pill and Paste room (Ctrl/Cmd+V doesn't paste a room). The room floats in as one piece: drag it onto an outside wall and it snaps on, turned to stand outside the plan; slide it along the wall to where it belongs, then tap Done. The outline grows round it and everything keeps the positions it had. Only a run of outside walls that projects from the house can be copied — not the whole outline (duplicate the design for that) and not a single straight wall. Step by step: Copy a room from one design into another.

I copied something — where is the clipboard?

There is no clipboard screen to open. As soon as you copy, a Clipboard pill appears with the count — beside the 3D preview pill, top-right on a phone or tablet and bottom-right next to the compass on a computer. Tap it for Paste (the copies land in the middle of your view) or Clear. The pill disappears when the clipboard is empty. What you copied stays on the clipboard when you leave the editor, so you can open another design and paste it there: furniture, interior walls, stairs and the rest all travel (on the same device and browser). A room that sticks out from the house can be copied with its outside walls too (copy a room between designs); to reuse a whole outline, duplicate the design from Home instead.

Can I copy on my computer and paste on my phone?

No. The clipboard is kept on the device (and browser) you copied on. To get a room onto another device, open the design there and copy it there, or copy and paste on one device and open the result anywhere: the design itself syncs.

How do I select a window that's behind a fireplace?

Tap the spot. When items overlap, a Select item chooser lists each one by name; pick the window.

I pressed flip on a multi-selection and everything collapsed onto one spot. What happened?

There used to be no flip on a multi-selection: the two small unlabelled icons on the blue bar were align buttons, and aligning a row could pile the pieces onto one spot. Both are fixed. The icons are now one labelled Arrange menu with a real Flip group left to right and Flip group top to bottom, which mirror the group in place with the same spacing, and lining up never stacks pieces on each other. If anything ever lands wrong, one Undo puts it back.

How do I flip a group of furniture?

Tap Select multiple, drag a box around the pieces (or tap each one), then tap Arrange on the blue bar and choose Flip group left to right or Flip group top to bottom. The group mirrors where it is, each piece still facing the right way.

How do I line up chairs or cabinets?

Select them with Select multiple, tap Arrange, and choose Line up in a row (one line across) or Line up in a column (one line up and down). Pieces that face the same way line up by their backs.

Why don't I see Arrange?

It appears once two or more pieces of furniture are selected. With one piece, use the Flip buttons in its own inspector (rotate, flip, and mirror). Walls and structure alone don't get Arrange.

Does Flip group work when the plan is rotated on screen?

Yes. Left to right and top to bottom always mean what you see on screen, whatever angle you've turned the plan to in Plan Settings → Rotation.

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