I don't know if you can setup the invert switch in a 10X, but I wouldn't even try & figure it out if I was you.

Invert switch + inverted heli == perfect scenario for meeting mother earth in an uncontrolled manner !!!

If you want to give inverted a try, I suggest you get yourself a sim and practise on it WITHOUT the invert switch.

Once you start using the switch, it will be near to impossible to fly switch-less ... which means 3D will probably never be in your bag of tricks.