布林线交易和指标 (Bollinger Bands Trading and Indicators)

Regards
Two indicators have been derived out of Bollinger Bands and they are Bollinger Bands width Indicator and Bollinger Bnads %b.
Please help in finding these indicators as first indicator measures the volitility of the market for trade nearly perfect entries and second gives trading patterns within bands for a trading system to be more effective.Please help in finding these indicators for MT4 plateform. Later we will dedicate this thread to BBs trading tactics as written by Jhon Bollinger in his book and its basic tactics and strategies

Thanks