Expressions - list of parameters

[Snakegreen]

Hi
I create list of parameters in expressions. I have choose in list name of expression, but system give to choose in list only value of expression. How change it?
Thanks!

 

[erik3000]

Here is one idea

 

[Snakegreen]

Unfortunately, but not. It`s variant write in "value" data as text, but digital parameter wherein not is add...