# Manage Pieces

Pieces and sections are created by the selected importer. Use the editor to review the imported structure and refine the values used for report generation.

## Select a piece

1. Open the project editor.
2. Select a size from the size toolbar.
3. Select a piece from the **Pieces List** on the left, or click it in the center preview.

When a piece is selected, the center preview focuses on that piece and the right side shows its sections.

![List of pieces with their sections](/files/6hhRDhMjl4mw1mWYByot)

## Edit a piece

1. Select the piece.
2. Click **Edit Piece** in the preview toolbar, or click the edit icon in the **Pieces List**.
3. Update the available fields.
4. Click **Save**.

You can edit:

* Piece name.
* Coefficient.
* Quantity.
* Weight rounding.
* Section label overlap handling.

The rounding value controls how section weights, piece totals, and size totals are rounded in generated reports.

{% hint style="info" %}
Keep **Update all section coefficients for the piece** enabled when the piece coefficient should also update the section coefficients for that piece.
{% endhint %}

{% hint style="info" %}
Enable **Avoid section label overlap** when close section numbers should be moved slightly apart in the preview and report. Leave it disabled to keep labels at the best central point of each section. Saving this option regenerates the affected DXF piece previews.
{% endhint %}

## Bulk edit pieces

In the all-pieces preview or the **Pieces List**, users with edit permissions can Shift-click pieces and open **Edit details**. If one piece is already open, Shift-clicking another piece includes the open piece in the selection.

Bulk editing can update:

* Coefficient.
* Quantity.
* Weight rounding.
* Whether section coefficients should be updated too.
* DXF section label overlap handling.

Bulk edits apply to matching graded pieces across sizes.

## Edit sections

Select a piece to show its sections on the right side of the editor.

For each section you can edit:

* **Coefficient**.
* **Area**, when the field is editable.
* **Note**.

Section notes appear in the generated report.

## Remove sections

Click the trash icon on a section to remove it from the editor and generated reports.

For DXF projects, Pesipiuma can remove the matching section from all sizes when the piece exists across graded sizes.

{% hint style="warning" %}
Removing a section affects the report output. For DXF projects, use **Recalculate pieces** if you need to rebuild the geometry from the original source files.
{% endhint %}

## Section numbering

Section numbers come from the imported source data.

For Excel importers, prepare source files in the expected order for the selected CAD system. For DXF imports, Pesipiuma detects sections from the processed geometry and lets you review, exclude, or merge them in the DXF Preview before confirming the import.


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