# Understanding Sentences and Paragraphs

The text input area is divided into **sentences** and **paragraphs**, which are collections of sentences.

### 1. Understanding Sentences

* A sentence consists of text and the <mark style="color:blue;">`Sentence Spacing`</mark> after the text.
* Each sentence can have its own sentence option values (sentence spacing, speed, tone, volume). For details about setting options for multiple sentences at once, please refer to the page below.
  * [voice](https://aivatar.gitbook.io/user-guide/usage/using-aivatar/configure-voice/voice "mention")

#### 1.1. Adding, Deleting, Splitting, and Merging Sentences

You can **add** sentences using the method below. ➕

* After completing text input, press the <mark style="color:blue;">`Enter`</mark> key to start entering a new sentence immediately after.

You can **delete** sentences using the method below. ❌

* Delete a sentence by removing all text within it using the <mark style="color:blue;">`Backspace`</mark>, <mark style="color:blue;">`Delete`</mark> keys, etc.

You can **split** sentences using the method below. ✂️

* Click where you want to split the sentence to position the cursor, then press the <mark style="color:blue;">`Enter`</mark> key to split the sentence at the cursor position.

You can **merge** sentences using the method below. 🔗

* Position the cursor at the beginning of a sentence and press the <mark style="color:blue;">`Backspace`</mark> key to merge it with the sentence directly before it.

{% hint style="warning" %}
Text within each sentence cannot exceed 400 characters.
{% endhint %}

### 2. Understanding Paragraphs

* A paragraph consists of one or more sentences.
* Paragraphs are used for the following purposes:
  1. **Setting language and voice options** for multiple sentences.
  2. **Visually organizing and separating** multiple sentences.
  3. **Deleting or exporting multiple sentences** at once.
* Each paragraph can have its own paragraph option values (language and voice).

#### 2.1. Adding, Deleting, Splitting, and Merging Paragraphs

You can **add** paragraphs using the methods below. ➕

* Position the cursor after the <mark style="color:blue;">`Sentence Spacing`</mark> of the last sentence in a paragraph, then press the `Enter` key to add a new paragraph.
* Click the <mark style="color:blue;">`Add Paragraph +`</mark> button located below the last paragraph to add a new paragraph.

You can **delete** paragraphs using the methods below. ❌

* Click the <mark style="color:blue;">`Trash 🗑️`</mark> icon on the right side of each paragraph to delete the entire paragraph.
* When there is no text in a paragraph, press the <mark style="color:blue;">`Backspace`</mark> or <mark style="color:blue;">`Delete`</mark> key again to delete the paragraph.
* Check the <mark style="color:blue;">`Checkbox ☑️`</mark> on the left side of all paragraphs you wish to delete, then click the <mark style="color:blue;">`Delete Selected 🗑️`</mark> button in the upper right to delete multiple paragraphs at once.

You can **split** paragraphs using the method below. ✂️

* Position the cursor at the beginning of a sentence, then press the <mark style="color:blue;">`Enter`</mark> key to split the paragraph at the cursor position.

You can **merge** paragraphs using the methods below. 🔗

* (Only for the first sentence in a paragraph) Position the cursor at the beginning of the sentence and press the <mark style="color:blue;">`Backspace`</mark> key to merge with the paragraph directly before it.
* (Only for the last sentence in a paragraph) Position the cursor after the <mark style="color:blue;">`Sentence Spacing`</mark> of the sentence and press the <mark style="color:blue;">`Delete`</mark> key to merge with the paragraph directly after it.