Setting a variable for each selection

Hi,

I am struggling to assign a value to individual selections. 

If i wanted to write all the prices to file before the off - i use "back_price" (all selections) but if i want to write to file "1/back_price" for each selection - i cannot get it working.

What is simplest way or workaround if possible please, I am sure I am missing something very simple but cannot put my finger on it.

Many thanks for any input
Kristo

Hi
Put variables and expressions in square brackets and enclose only string variables in quotes:

write to file: text: ["sel_name"] [back_price] [1/back_price]