---
title: Slice tool
slug: task-view-guide/slice-tool
docTags: 
createdAt: 2026-04-20T05:41:12.023Z
---

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# Slice tool in 3D

The slice tool allows you to cut several 3D lines or lanes at once by drawing a single straight line across them.

**When to use it**
When multiple lines need to be split at the same place (e.g. at a stop line or intersection). Faster than cutting one line at a time.

**Using it**

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Activate the slice tool from the toolbar button.
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Press and hold the left mouse button where the cut should start.
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Click and drag across every line you want to cut — a red preview line follows the cursor.
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Release to confirm. Each line the stroke crosses is split at the exact on-screen crossing.
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Press Esc to leave the tool without cutting.
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# Slice tool in 2D

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The slice tool in 2D is currently only available for 2D polygons.
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The tool is used to slice an existing polygon into two separate objects. The properties will be copied onto the new object. 

::Image[]{src="https://api.archbee.com/api/optimize/36CD7zAaOHvlVITPdmtCr-xOO9xbMb24kEE8-ujsGbS-20250825-112739.png" size="40" width="406" height="441" position="center" showCaption="false"}

### Editing process

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:::WorkflowBlockItem
Select an object (must be a single polygon without holes).
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Activate the slice tool from the toolbar button.
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Click to place points along the line where you want to cut the polygon.
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Apply the cut with `Enter`, or cancel the operation with `Esc`.
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