Example of defining and using a TeX translation

You have to use frequently a vector named i and you want to define a short cut for that and to put it in jPreTeX.
    1. You open the User-Keyboard by right clicking and choosing Show the user Font keyboard;
    2. You shall associate the letter i of this font, so you left click on it.
    3. In the text field appears it translation in TeX : ???. You delete these ? and instead you typewrite \vec{\imath} then you finish by hitting the Enter key.
    Each time you have this letter in formula in a document, it will be translated by the vector i.
    Of course you can associate any TeX tranlation to any letter of this font, but you can do the same with the maths or greek fonts allowing you to have more symbols.