Insert specific characters in fonts

Hello, this is my first post on the Unity Forum

after searching for a while, i cant really figure if there is a way to import, or add specific images (icons, in my case) into the font. Because, i would like to put a Locker, or Edit icon in my text area, i need it to do it directly in the font if i want to be able to keep the center justification of the text + the icon ( i cant hard write it, as the text is going to be localised )

Thanks !