The Register Idle Event Parameter

If the Register IDLE event when user is inactive checkbox is selected (on the Editing Client / Editing Client Group page, on the Monitoring [Windows/macOS] tab, in the Monitoring Parameters section at the top) to enable this option, an idle event will be registered whenever there is no Client activity, i.e. no mouse movement or key pressing for longer than the Timeout (min) value specified (where the default value is 15 minutes).