[QG] Dynamic Zones Value Chart

The classic value charts indicator has fixed overbought and oversold levels at 8 and 10 levels and the idea of adding dynamic zones around them instead of fixed levels is appealing.
During the strong trending movements, the overbought and oversold levels also dynamically move up or down.
I have used the dynamic zones code by @allanster.
The idea of using dynamic zones on value charts comes from a similar indicator available in mql4.