Hello My Dear Friends.
I need help. Where I can learn on the expressions?
because I am desperate. i crazy. i so crazy
Thank you Very Much. :shock:

Use the ‘exhelp’ command from the Textport to see all the built-in expressions. Without any arguments it will show all the available ones. Adding an argument will give you more details.
Also, the example files embedded in the help docs are great to look at. Lots of useful expressions to learn from there.

old VTMs from 3dbuzz also covers a little bit of expressions so have a look there