I click on "automaticly place switch levers" in Surveyor Options and turn that feature "Off" by ticking the button off. Then as you lay switchs they will have no levers at all (but then they can not be thrown) (so you must look down from straight above, and click on Trackside Lever of your choice, and apply custom levers directly in the center of the turnout spline point).
So basicly, if you have a default lever in place, you must delete each one, one by one, and replace them by hand.
If you delete them all, then go back and hit each switch and apply a new one, that might be easier.
I don't know if you can edit a route in the CCP, and change out all the switchstands in one shot ?
I have always admired those CNR switchstands ... but I have found that the PRR used something close to the "Low switch stand r" by Palanor (which has a unprototypical looking throwover lever).