Word processors have many limitations when it comes to editing mathematical formulas, but that does not mean we should stop using them. Ideally, you would use a complementary program to create equations and insert them in your documents.
This what MathType does, a powerful equation editor that you can use with Office or on its own. MathType's strong points are the hundreds of symbols that are accessible from the keyboard, along with its compatibility with various systems for importing and exporting formulas, such as MathML, TeX or Texvc.
With MathType, you can change or move any part of an equation. Nine tabs offer quick access to frequently used features, including those we add ourselves.
You can completely customize MathType, from keyboard shortcuts to font style and its integration with Office is excellent, thanks to a special toolbar.