1. Open up a chat with the person you would like to send a document to. (See: https://rbservicesnz.freshdesk.com/a/solutions/articles/51000200949)
2. Click on the paperclip icon under "Type a new Message"
   
3. Click "Upload from my computer"
   
4. Navigate to the document you would like to send, and double click on it to attach it
   
5. Press the "enter" key to send the document in the chat