Writing a message. Open a chat, and type your text in the message field.
Sending a file. In the chat, click and select a file to send.
A list of options appears when you right-click on the check mark by a message that has been sent.
If you are the chat owner, admin, or moderator, you will also be able to do the following:
In the message field, type @ and select the user you want to mention.
Next to the message field is the icon . When you click on it, you will see the selection of emojis and stickers.
To add new stickers, click in the stickers window.
Go to the chat that you want to search in. Click and enter a search term.