How to modify the encoding list for saving files

Can the list of encodings here be modified when changing the encoding for saving a file? The original list has too many items, making it rather difficult to find the desired encoding name.

<img width="239" height="231" alt="Image" src="https://github.com/user-attachments/assets/4d827574-5977-409b-b7ca-ddc0f976b4df" />