Stressing Vol in TOS

I am stress testing a SPX position in TOS desktop. Implied volatility is showing as 18% as I type. I would like to see how my position will change if the vix jumped to 25%.
I go to
Positions and Simulations--> gear symbol--> Vol Adj
And input +7%

Am I doing this correctly?

 

Also note that you can adjust per expiry by clicking on “More parameters”.