Allen remains at heart a teacher. He will teach to the level that you wish to take serious. As noted in his biography, what was bestowed on him was like a family heirloom and a gift.
There are a few ways to become a student. One is via virtual sessions which you can set up by email or the events calendar. Another is though workshops. You can organize a workshop or attend one that is already on the calendar. As Allen has just relocated back to the United States, the calendar is open at the moment but he still will have trips back to Europe so if you live in any part of the world these workshops are a chance to work in person which is a unique opportunity.
Often these workshops will be over the course of a weekend or a few evenings depending on your interest and the size of the group. Occasionally, he has been made available for one on one trainings which are unique but a fruitful experience.