If this plugin is activated, the operator is able to manipulate the timer in the top right of the Live screen.
It can be set up to count down from a specific time, whilst also showing how long has elapsed.
Controls you can have are adding / removing time and pausing the timer. None of these effect the elapsed time which is always counting up.
A click of each arrow for adding or removing time adds or removes one minute.
This is useful if the time is important to your show (like an escape room) and you want to give your audience some more official time to complete the show.
Depending on how the timer has been set up, you might be limited in how much time you can add or take away.