Custom Emoji Conversion/Convert Menu

In the discord settings, there is an option so that discord converts text smileys (like :) and :( and :-) and so on) into discord emojis (like 😀and 😔) for custom Discord Nitro Server Emojis (this is not the same as the link below) so if i do :) i can change it to use my custom happy emoji from my server instead of the normal happy discord emoji

Links:
This is not the same as https://support.discord.com/hc/en-us/community/posts/360045258412--Automatically-convert-emoticons-emoji-editing-adding?input_string=Custom%20Emoji%20Conversion%2FConvert%20Menu