User variables

Hi guys

How do I get a variable to keep track of max profit reached so far, I see top right of the software has a button to display user vars but cant seem to get anything into it?

Currently I already have a set user variable within the trigger but the value doesn't appear in that little window ever.

EDIT

Oops, found it, but I want it to store the max profit reached not just display the total profit/loss as I am trying out a few progressions and would like to keep a bet size IF current bank is less than peak reached.

Create a user variable called say MaxProfit and every game update it:
Value: IF(test_funds>MaxProfit, test_funds, MaxProfit)