Global Filter on Dashboard and Report

After used the Power view report and Power BI dashboard a while. we were request many times that if it is possible to have a global report filter which can apply to all reports.

Currently in Power VIew we have chart filter and also the view filter, which is already fantastic. But this didn't solve the cross report concurrentness. Say if we have 4 reports, if we want to filter the reports to see only one particualr product, I need to filter 4 times, if there is a global filter will be great.