# Initialize the show

{% hint style="warning" %}
You cannot change the show parameters after having initialized the show.

You must create a new file if you want to change the show parameters.
{% endhint %}

## **Scene Preparation**

Clicking the Prepare the scene button cleans the current scene and sets it up for show creation. This action creates a basic optimized structure, including a reference compass.

## 💠 Takeoff mode: 

***

## 🔹Standard 

This mode configures a drone formation in a grid layout, with the following parameters:

* **`Nb per family:`** number of drones per [family](/lsc2/show-creation/initialize-the-show/family.md) (value between 1 and 9).
* **`Step:`** spacing between the centers of each family (default: 2 meters; range: 1.5 m to 10 m).
* **`Nb X:`** number of families along the X-axis.
* **`Nb Y:`** number of families along the Y-axis.
* **`Angle:`** angle of orientation for takeoff.

***

## 🔹All in one Platform

Designed for **`IO3`** platforms, this mode requires groups of 6 drones per family. Parameters include:

* **`Installation gap`** :
  *   Column: aligns platforms in columns.
  *   Line: aligns platforms in rows.
* **`Nb X:`** number of families along the X-axis.
* **`Nb Y:`** number of families along the Y-axis.
* **`Angle:`** angle of orientation for takeoff.

***

### 🔸Markers

This option allows you to enable or disable a visual marker (and choose its color) when using the following tools :

* **Takeoff**
* **Land**
* **Go to target**
* **Set color**
* **Magic color**
* **Fire**

***

### 🔸Compass 

A compass is created when you prepare the scene. You can hide it with H key or in the "System" collection. It is possible to draw the compass again if it was deleted with the button in the "Initialize the show" section.

<figure><img src="/files/IOy9qKKjeprJVsOHiEaR" alt=""><figcaption></figcaption></figure>

{% hint style="warning" %}
**The drone repartition must be followed exactly when placing the drones in real life.**
{% endhint %}

{% hint style="danger" %}
**You should never modify manually the drone repartition position.**
{% endhint %}


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