Save and load using the Save Attribute function
I'm trying to save an attribute (number of presses) without using a table. I only have to save the one number, so I was hoping the save attribute command might be simple. The number is a game level 'real' attribute which is set on a timer to self save every 5 minutes in case the thing crashes. It's going to be set up to display the number on the screen as well, but I need it to reload correctly when the game is turned off and in again, like a high score.
My question is, what do I put in the 'key' expression editor area of the 'save attribute' behaviour? What does key mean in this instance?