At this time beta testers are by invitation only. So far there have been only four invites, and that list isn’t planned to expand in the immediate future. The limiting factor is the amount of feedback I can handle, and at the moment I am maxed out with the four active testers. I believe adding more testers would slow the project down at this point.
As soon as possible, my plan is to make a “preview” version available with online classes, as was done for Panorama X in 2015. I already have an online sign-up form ready to go, in fact the form has been ready for almost two months. But from past experience I know that when this “goes live” questions and feedback will consume almost all my time, and actual progress on the program will slow to a crawl. So the ducks need to be more in a row before expanding to a larger audience. I’ll be sure to let everyone know when that happens!