# Sections
The **Sections** feature in Activity Templates is a visual grouping tool that helps organize activity items and enforce specific requirements for operators. Sections allow you to group related items together, making the activity template more structured and user-friendly. Each section can be marked as either **required** or **optional**, which determines the level of enforcement for completing the fields within that section.
#### Overview
To define a section in an activity template, you will see two separate elements: one for the **Start Section** and one for the **End Section**. These elements must be placed outside the intended activity items for the section.
**Example Structure:**
* **Start Section**: Denotes the beginning of the section and its properties.
* **End Section**: Denotes the end of the section.
The sections will visually group the activity items and control how they behave based on whether they are required or optional.
### Section Types: Required and Optional
Sections can be classified as **Required** or **Optional**. The difference between these types impacts how users interact with the fields in the section.
#### Section Behavior Table
| **Section’s Behavior** | **Required Field** | **Optional Field** |
| ---------------------- | ---------------------------------------------------- | ------------------ |
| **Required Section** | Must be filled | Optional to fill |
| **Optional Section** | Must be filled if at least one other field is filled | Optional to fill |
#### Notes for Existing Template Migration
* All existing activity template sections that are marked with **SECTION** will automatically have `required = true` to maintain the behavior from previous versions.
* If you want to modify the behavior of existing sections, you need to explicitly adjust the section settings to change their required or optional status.
