Bollinger Bands Touch Map

This simple script based on Bollinger Bands to collect Touch Point at bandsand display them on the map. Detail of rule as below:
1.Define Touch Point
1.1.Touch Point at Lower Band
+ Key bar:
- Open Price lower than BB lower band, Close Price higher than BB lower band
+ Touch Point:
- Median Price (HL2) of Key bar
1.2.Touch Point at Upper Band
+ Key bar:
- Open Price higher than BB upper band, Close Price lower than BB upper band
+ Touch Point:
- Median Price (HL2) of Key bar
1.3.Zero Point
- Close Price of Current bar
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2.Touch Map
+ Last 5 Touch Point will be show on the map
+ Newest Touch point is numbered as (1) and show at the left of Zero Point
+ Each Point has a label show point's value
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3.Fibonacci
+ Enable: Apply to number of Touch Points indicated
+ Style Up: 0 Level at the bottom
+ Style Down: 0 Level at the top
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4.123 Pattern
+ Pattern: dot 2 and dot 3 at the Top and the Bottom of group 1234
+ M Pattern: dot 3 at the Top of group 135 and at the Bottom of group 234
+ W Pattern: dot 3 at the Bottom of group 135 and at the Top of group 234
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5.Supply Demand Zone
5.1.Supply Zone
+ Supply Zone is area map structure change from upward to downward
+ Supply Zone is limited by 2 dots highest before upward structure broken
5.2.Demand Zone
+ Demand Zone is area map structure change from downward to upward
+ Demand Zone is limited by 2 dots lowest before downward structure broken
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6.6.Over Block
6.1.Overbought Block
+ Overbought Block is location Long position covering
+ Ovb Block is limited by higest high and upper band at top of map
6.2.Oversold Block
+ Oversold Block is location Short position covering
+ Ovs Block is limited by lowest low and lower band at bottom of map
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7.RSI Column
+ RSI Overbought is marked by Overbought color
+ RSI Oversold is marked by Oversold color
+ RSI Normal is marked by Normal color
+ Symbol ▲: RSI growing
+ Symbol ▼: RSI falling
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8.Volume Direction
+ Volume growing is marked by Up Color
+ Volume falling is marked by Down Color
+ New Highest Volume on the map is marked by High Color and H Label
+ New Lowest Volume on the map is marked by Low Color and L Label
+ Volume higher than Median level is marked by Up Color and M Label
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9.Useful features
+ Quickly find chart patter: 123, M, W...
+ Quickly find wave patter: I, V, N...
+ Quickly find Key level when moving between different Time Frame
+ Quickly recognize chart is trending or trendless
+ Quickly recognize divergence of Price and Volume
+ Quickly calculate Entry, Stoploss, Takeprofit by using Fibonacci