I must admit, it is always great to find a new tool that you can fit into your BI workflow and DAX Studio which helps you edit DAX queries is one of those tools. I was pleasantly surprised at the full functionality and deep feature set of this tool on CodePlex.
DAX Studio is a tool to write, execute, and analyze DAX queries in Power BI Designer, Power Pivot for Excel, and Analysis Services Tabular. The tool is both an add-in for Excel 2010/2013/2016 and a standalone program.
Tabular Object Explorer
Choice of output modes
Connect to PowerPivot
Connect to SSAS Tabular Instance
Connect to Power BI Desktop
Modern User Interface
Office 2013 like Ribbon interface
Query Plan Trace
Server Timing Trace
New Version notification
Give it a look and let me know what you think.