Need Help with custom indicator

Im looking for someone to write an indicator. I want to have in MT4 on a 1 hour chart to have every 4th hour candle to be the same color. For example when I look at a chart with black and white candles, every 4th hour candle will be red or something different than black and white. The hours I need are 9:00am EST, 1:00pm EST, 5:00pm EST, 9:00pm EST, 1:00am EST, and 5:00am EST. Sorry I don't know the gmt time. Please post indicator here or pm me. I have a trading system that I need to check every 4th hour, and seeing the color change will make it much easier to identify the right bar. Any help would be appreciated.

I could also use something like this. It seems like it would be pretty simple, is there anyone who has something like this already or who could make one. I dont know much about programing. I love metatrader but the timeframes are the only complaint. I always have to add or subtract to figure out the right time and right bar. This would make it a little easier.