Why don't you add ghost mode feature to Plus Messenger?
Because it againsts Telegram API Terms of Service.
"1.4. It is forbidden to interfere with the basic functionality of Telegram. This includes but is not limited to: making actions on behalf of the user without the user‘s knowledge and consent, preventing self-destructing content from disappearing, preventing last seen and online statuses from being displayed correctly, tampering with the ’read‘ statuses of messages (e.g. implementing a ’ghost mode'), preventing typing statuses from being sent/displayed, etc."
Because it againsts Telegram API Terms of Service.
"1.4. It is forbidden to interfere with the basic functionality of Telegram. This includes but is not limited to: making actions on behalf of the user without the user‘s knowledge and consent, preventing self-destructing content from disappearing, preventing last seen and online statuses from being displayed correctly, tampering with the ’read‘ statuses of messages (e.g. implementing a ’ghost mode'), preventing typing statuses from being sent/displayed, etc."