MT4 Daily Breakout EA Programming

Hi I'm work on an EA based on breakouts of daily high's and low and am hoping someone has already written the code to something similar.

How do you move a stop to entry (BE)?
How do you program closing 2/3 of a position at the end of the day? (close of the bar)
How do you program MT4 to bet a fixed percentage on each trade?

any help or direction towards already published materials would be greatly appreciated.

thanks,

NasdaqNinja

Take a look at the Daily95pips strategy here on FF: http://www.forexfactory.com/showthread.php?t=44246

Pr1mer