Change your SL and your TP Manually in the Chart

You make a quicktrade with a fixed SL and a TP and then you go to your chart to adjust them accordingly. 

You do that when you drag your SL only in the intersection of the price (so you can make drawings in your chart at ease) and then a confirmation window pop up and you press ok to confirm. The line highlights when you go to these intersections.
 

I've seen this in another platform. Sometimes you wanna modify positions this way.