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I'm creating a robot that uses the combination of iEnvelopes and iCCI indicators to mark trade, but my problem is how to make my iEnvelopes draw and pick it's prices from my Commodity channel indicator (iCCI ). So instead of getting prices like

Please i need help, i have a simple trendline that draws a line from lowest low at a point to the current low of the most recent candle. So what i want is to get price of the trendline at any given candlestick, for example let say my trendline

I want know how to modify my open orders,whether buy or sell order . i have an EA that trades for me and i make use of Buy() and Sell() function to enter my trades So i want to know how to identify each order and modify it, for example if i make a

I'm wondering how i can export my EA bot, i want to send it to someone for testing  before i can consider publishing to the market. So is there a way to build a test version that someone else can install on there own meta trader 5 account, like

Please am new to mql5 I want to run a simple mql5 program that will return the bid or ask price once OnTick() is called, but am getting compilation error once i compile my program Errors such as 'MarketInfo' - undeclared identifier