====== Creating activities ======

Creating an activity in the **Gantt chart** allows you to structure
the schedule over time and organise project tasks.

An activity can represent, for example:

  * a construction phase
  * a preparatory task
  * a specific intervention
  * a milestone or planning reference

The **Gantt chart** therefore becomes an essential entry point for building
the temporal logic of the project.

-----

===== Accessing activity creation =====

From the **Gantt design view**, it is possible to add an activity
directly within the schedule table.

Creation is done from the **Gantt** interface, accessible
from the navigation sidebar.

Once in this view, the user can select the level of the
project where the activity should be created.

-----

===== Choosing the creation level =====

Before adding an activity, it is necessary to define where
it will be inserted within the project structure.

An activity can be created within:

  * a project
  * a subproject
  * a specific level of the project hierarchy

This choice helps organise the schedule consistently and
maintain a clear structure.

-----

===== Adding an activity =====

{{:en:gantt:2026-03-12_10h08_30.png?600|}}

An activity can be created in several ways within the Gantt chart.

**1. Add an activity at the same level**

The **"+"** button allows you to add an activity at the **same
hierarchical level** as the currently selected activity.

**2. Add a nested activity**

The **nested "+"** button allows you to add an activity **inside
the selected level**, like a sub-activity.

**3. Create an activity directly in the Gantt chart**

It is also possible to create an activity directly in the
diagram:

  - **right-click in the Gantt chart**
  - select **Add activity**
  - **draw the activity with the mouse** at the desired location

This method allows you to position the activity directly
in time when creating it.

Once created, the activity appears in the schedule structure.

-----

===== Main activity parameters =====

{{:en:gantt:2026-03-12_10h13_13.png?600|}}

Once created, the activity can be completed or modified from the **Gantt** table or from its properties.

The main parameters of an activity generally include:

  * its **name**
  * its **start date**
  * its **finish date**
  * its **duration**
  * its **calendar**
  * its **level in the structure**
  * any additional **custom fields**

These elements define precisely the position of the activity
within the schedule.

-----

===== Editing an activity =====

{{:en:gantt:2026-03-12_10h31_25.png?600|}}

An existing activity can be modified directly in the **Gantt chart**.

Depending on the situation, editing can be done:

  * by direct selection in the table
  * by right-clicking and selecting **Edit**
  * by adjusting its position directly in the diagram
  * by double-clicking the bar in the **Gantt chart**

-----

===== Using activities within the scheduling logic =====

Activity creation is the foundation of building the **Gantt chart**.

Once activities are created, it becomes possible to:

  * organise them within the project structure
  * link them together
  * filter or group them
  * analyse their sequence over time

The **Gantt chart** then becomes a true tool for building, reviewing and analysing the project schedule.