There are lots of cases you may want to comment/uncomment multiple lines in DAX scripts. You can save lots of development time if you know the shortcuts.
Here you go:
- Select multiple lines of code you want to comment
- Press Crtl+KC to comment those lines
- Press Ctrl+KU to uncomment commented lines
Mini-tip: The shortcuts work in SQL Server Management Studio (SSMS) writing any queries including DAX queries.