Hold button to lock cursor to current time.

In the same way holding ctrl locks the cursor to the nearest HLOC on a candle, essentially creating a vertical lock, A horizontal lock to the current candle. Could be useful for a quick, easy way to see which candle you were looking at when charting, currently when reviewing an open trade setup's chart (Got the vertical line but I turn this off as it clogs the chart), but especially when we introduce saved charts.

I would use it for setting rays for entry and exits that only appear from the current candle forwards. Can do it manually by moving slowly, but a button to autolock it there would be handy.