====== Grouping activities ======

**Grouping** allows activities in the schedule to be organised
according to a specific field.

Unlike **sorting**, which only changes the order of
activities in the table, grouping creates **additional
visual levels** in the Gantt chart.

This helps structure the schedule display and
facilitates the analysis of activities.

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===== Accessing grouping =====

{{:en:gantt:2026-03-12_14h20_02.png?600|}}

To open the grouping settings:

  - click the **Group by** button in the Gantt toolbar

The grouping configuration window will appear.

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===== Defining a grouping =====

Grouping is based on an **activity field**.

To create a grouping:

  - select a **field** from the list (for example: Zone, ID, activity type, etc.)
  - optionally choose a **colour**
  - click **Add**

The field will then appear in the list of active groupings.

Activities will automatically be grouped in the Gantt chart
according to the value of this field.

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===== Example of grouping =====

In the example shown:

  * activities are grouped according to the **Area** field
  * each zone becomes a **grouping level**
  * activities belonging to the same area are displayed together

This makes it easy to visualise how work is distributed across the different project areas.

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===== Removing a grouping =====

To remove a grouping:

  - click the **Remove** icon in the list of groupings

The schedule display will then return to the standard organisation.

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===== Grouping options =====

Two additional options are available:

**No grouping**

Disables all grouping and restores the
standard activity display.

**Show simple activities only**

Allows structural activities to be hidden and
displays only operational activities.

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===== Difference between sorting and grouping =====

It is important to distinguish between these two features.

**Sorting**

  * changes the order of activities in the table
  * is performed by clicking column headers

**Grouping**

  * creates visual categories in the Gantt chart
  * groups activities according to a common field

Both tools can be used together to improve
the readability of the schedule.