I spent a very frustrated few minutes after opening Easel to do a carve. After trying to do a free V-Carve and being greeted with no way to select “Use a free day” I figured that they decided to do away with free days for some reason. I try to schedule my pro days on the weekend so I don’t have to purchase Easel Pro. Turns out, it was moved to an “Options” section very recently. Support documentation on Inventables website does not yet reflect this change.
So heads up, you can still, they just don’t tell you you can up front anymore.