You can delete individual messages within a Conversation in Sublime LMS ™.
Click the Inbox icon in the footer to open Conversations.
Once you click the Inbox Messages , you can view the conversation messages.
Once you Click the Menu icon, you view the dropdown for delete
Click the Delete link, They ask confirm to delete message.
Click the Delete button to delete the conversation message.
You can view the status of the message deletion whether it is successfully deleted or not.