Not sure if I'm missing something, but it seems as easy as just holding the shape a little longer to change the shape, yet when I do nothing happens. Too long and it defaults to paint bucket. The video tutorial also mentions that taping the bull's eyes will cycle through shapes. When I do it, it cycles through different versions of the same shape. Thoughts?
I figured it out. You have to be in the basic lines and shapes, and that's where you can cycle through the different shapes as well as resize them and reshape. Not sure why the circle, rectangle, and triangle have their own tabs.