Remap keyboard/keys for InputField

Hello, to keep it simple, I have an InputField where the player can type.

Example 1: When the player types the letter "a" it needs to send letter "b" instead.

Example 2: I want to accomplish this https://www.autohotkey.com/docs/misc/Remap.htm, but without the player having to download and run an AutoHotKey script, or remap their keys in the registry.

Thank you in advance