That's certainly possible. You can force yourself in all phases by placing the following parameters after the URL on the website:
?buyingphase=orientation
?buyingphase=comparison
?buyingphase=decision
?buyingphase=evaluation
If you want to test touchpoints live on the website, it is still important to place yourself in the show group. This can be done by placing ?abgroup=show after the URL. This only needs to be done once as you won't change the show/hide group after that.