Hotkey for trendline, channel,... becoming horizontal automaticly

When pulling a trendline it's always guessing and fiddling to make it horizontal. We can use a ray or line but then the chart gets cluttered very quickly. In other platforms, such as Tradingview or Ninjatrader, the combination of <"shift"+pulling a trendline> gives automaticly a perfect horizontal trendline.  It would be great to have this in Atas.