Convert To Interpolated String
Quickly convert a string literal to a interpolated string
This feature is available in MFractor Professional
Introduction
When working with strings in C#, it's common to replace string literal with interpolated strings to simplify string concatenation.
To speed this up, MFractor includes the To Interpolated String code action that transforms a string literal into an interpolated string.
Using The Code Action
To use the Convert To Interpolated String code action, place the cursor over a string literal and press Alt+Return or right click and select Quick Fix. In the menu that opens, choose To Interpolated String.

MFractor will transform the string literal into an interpolated string, placing a $ before the string literal.
