how to change source code radial slider

Hi! UE5 has a RadialSlider. It has ValueTags, but you can’t put your own names in the tags. I want to change the functionality by adding a structure of two values: float and FString, in order to set the value in the first cell, and the tag name in the second. but when you change the code - these same changes are not applied in the engine. I tried compiling both through the engine and through the IDE. how can i change the RadialSlider code?