# Chat types and what you can do with them
### Messenger is actively developing. Now there are 2 types of chats available:
1. **Notes.** A special type of chat where you can keep notes and files just for yourself. Messages in Notes are only available to yourself. You cannot delete this chat, but you can clear all history, including the files.
2. **Personal chat.** Your private chats. Your chat history is only available to you and the person you are chatting with. Deleting a personal chat means that your chat history will only be deleted for you, but will be kept for the receiver. If the person who sent you a message is not your contact, you can block them or add them to your contacts.
### What you can do with the chats:
* **Pin.** You can pin up to 5 chats, which will appear at the top of the chat list in the left menu. To pin a chat, click on the chat you wish to pin. Click on the three dots in the upper right corner. Select "Pin" from the actions drop-down list.
* **Turn notifications on and off**. In the upper right corner of the chat, click on the three dots and select "Mute/Unmute" from the actions drop-down list.
* **Mark as read**. If you don't want to read chat messages right now, you can mark the chat as read. Open menu with the right-click and select "Mark as read". You will mark the chat as read, but the messages themselves will not be read.\
You can also do the opposite. If you want to mark a chat that you've already read so that you don't forget about it, open the menu with the right-click and select "Mark as unread". In this case, a blue circle will appear to the right of the selected chat in the chat list.
* **Delete.** Click on the chat that you want to delete. Click on the three dots in the upper right corner and select "Delete" from the drop down list.
* **Expand, change the position and size of the chat window.** You can expand an open chat to almost the whole page. Click the button: 
You can change the position of the chat window by moving it to the right or left and stretching it. To do this, move the cursor across the top of the window between the chat name (or the name of the person you are talking to) and the buttons on the right. Once the cursor changes to a "hand", press and hold the cursor to change the position and/or size of the chat window.
### You can do the following messaging operations:
* **Send text messages**. A message can contain up to 4096 characters. Message storage history is unlimited.
* **Send files**. Files are sent one message at a time. Almost all file formats are available, including pdf, doc, xlsx and csv. When uploading a file, do not close the page or the upload will fail. If you are sending a photo or video file, the quality will be fully preserved. 2 GB is the maximum size of one file. The file storage history is unlimited.
* **Forward**. You can forward a text message or file from one chat to another. Often important messages are forwarded to notes so you don't forget anything important.
* **Reply**. This quotes the message you are about to reply to. You can send a text message as a reply to a specific message or as an attachment to another message.
* **Copy**. Allows you to copy text from a message.
* **Edit**. You can only edit your own messages, but the ability to edit depends on the type of chat. In the case of a personal chat, you can only edit messages within 15 minutes of sending. This is to prevent other participants from distorting the correspondence history and agreements. In case of "Notes" chat, you can edit any message regardless of the time it was sent.
* **Delete**. You can only delete your own messages, but the ability to delete depends on the type of chat. In case of "Notes" chat, you can delete any message.
{% hint style="danger" %}
**Note!** In a personal chat, you can only delete messages within 15 minutes after sending, and deleted messages are marked as "Message deleted". In this way, participants cannot distort the history of correspondence and agreements.
{% endhint %}
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