You could get rid of that gap @Vendetta was talking about.
Do your normal stats this way (by using a conditional chart):
*if not (condition)
Then, add another stat chart, after that:
The first stat chart is the one that displays all your stats WITHOUT “skill3” (which, in this case, is the attribute we want to display only after a certain part in the game).
The second stat chart is the one that displays all your stats WITH “skill3”.
Since we added the “*if” in the front of both, only one of them will display. You define the variable in mygame.js as “false” (the “condition” variable) and then, when you want the hidden stat to display, you just set that “condition” variable to true so that it will display that stat as well, amongst the other ones (without any gaps).