With this add-on for WhatsApp, you will be able to fool other users because it works as an alarm that changes the last connection time visible in the app.
Functions:
Allows you to select a specific 'last connection' time and then configure it to connect every so often.
Activities:
Basically it is a way to avoid being controlled because you will be able to decide when you appear to be connected. Nobody will know if you're sleeping, working, etc.