I want to draw the resisstance and support belt as shown in the url below. If I have figured out where to draw, how can I draw it with highchart? https://www.tradingview.com/script/4DXMWL44-Next-Gen-Auto-S-R/#chart-view-comment-form The drawing method I have found so far has to cover the whole chart...

This question involves several points: 1. let the chart respond to keyboard events; 2. how to redraw the chart. I don't know how to do it right now, so I'm asking someone for advice.