That option isn't and rightly so; available.
I'd be very disappointed if it was implanted on stars.
Yes the software availble to show you that; is in your head
Honestly though; if you want a poker calculator; then google it there are plenty available at a price.
If you're playing and don't know your hand strength without having a tool to aid you; I'd try learning the rules a bit more. I think if anything having such an option available will hinder your overall poker success.