You can able to send the typing/gone status to the group so that all group participants can aware of that the user is typing the message. If you want to send the typing status for a group, you can utilize the below method.
Check here for response format for both TypingStatus and GoneStatus method
When the user starts typing the message in the input box of the chat window, call the below method to send the composing status, so that they can show a typing message in the header/recent chat.
Once the user stopped/finished typing the message send the gone status as described below, so that they can hide a typing message in the header/recent chat.
|Group JID||JID String||true|