Anyone who uses PowerBI long enough has had a PBIX with 50-60 measures and it has become time consuming and tedious to mantain. In Excel you can do a quick find/replace to edit several formulas - in PowerBI you need to select each one individually. An "excel-like" interface for editing measures would save a lot of time! This would take PowerBI to the next level regarding productivity. I've prepared a mockup for this as well as a DAX Editor. Let me know what you think.