Big THANKS to @Yuri Marx Pereira Gomes  (getting red cheeks) 
You confirm, that my intention to pass along the accumulated experience works.
And I'm glad I can contribute to this community which I had in mind (~ 15years back)
but couldn't realize myself. 
So I have also to thank @Evgeny Shvarov and his team that made my "dream" true and successful.
  

Hi! though this looks like a nice feature it is not so useful if not portable and
even available in ZPM.
I use since ~ever~  my 3..5 char abbreviated extensions in %ZLANG...*
to add such abbreviations I have even created my helper to add it o the fly
Helper for ObjectScript Language Extensions with OEX + Video

And sorry where is the difference between :sql  to ZSQL or zsql  (insensible to any mix of case) ?
In addition in %ZLANG* your shortcut can also be a multiline function.