Some strategies work better in a timeframe which is not provided by default in MT4. And I do have a specific requirement to plot 90 min charts in metatrader which is not available by default in metatrader. Iam using 90 min charts for Ichimoku Shorter term Trading system. Moreover, this method will update your custom chart in real-time, so it really is just as good as the default timeframes of the platform.
As everyone knows that most of the MT4 platform is available in demo account at free of cost. So importing the google intraday datafeed into metatrader could be boon for market learners & small investors and for those who cant spend on hefty money on paid softwares and datafeeds to analyse the stock markets. This article explains how to import Google Intraday and EOD NSE datafeed into metatrader.