Smaller scale of Magnification

Chart's Zoom in & out, were only scaled in 20% scale of magnification (1:5 of 100% max. zoom). This 20% scale setting makes it hard to adjust the candlestick view at appropriate level of comfort, and everyone has different level of eye viewing.
I Hope this scale soon can have an update which reduced to at least 5% (1:20 of 100% max. zoom).