Ok so after doig some searching there is absolutely no way to change the pitch range On a wego and other entry level controllers.
Interestin.

Been an issue since 2012 according to this post.
serato.com

Sad thing the work around by hold shift and moving the pitch slider while ur in sync does not work either.
I tried to map the said function but the option is not presented either.

Any suggestions

have you tried shift and keylock

There is no key lock button on this controller. I did try holding shift and pressing the software keylock. Still nothing.

Very weird oversight by serato.

Ok i did find a solution. I was able to find the range % change in midi maps settings.