"High Power" mode gone for fenix 5 series?

Hi,

His it me or the following code doesn't work anymore for the fenix 5 series?

function onExitSleep() {
// High Power mode enable
isAwake = true;
}

//! Terminate any active timers and prepare for slow updates.
function onEnterSleep() {
// High Power mode disable
isAwake = false;

// redraw the screen
Ui.requestUpdate();

}

I was display seconds on fenix 3/5 etc... when the watch was in "High Power" mode.