Analytics - Filter by Current User Or Current Sprint Or Current Release

[Robert Betcher]

I am trying to build some custom reports and dashboards where we can filter by the Current User Or the Current Sprint or the Current Release.  In some of the Agile Lifecycle Management tools, there was code like the following:  Owner = CurrentUser   This will filter out all results by the User logged into the system.  I need to find the same type of code for Version One.  Thanks in Advance.