Peter,
licensing school is totally different than HPDE. Licensing school is race school. You get to learn to race. Start practice, race practice and so forth. SCCA does offer this, usullay twice a year.
SCCA lapping day is non existence. What the track usually have is what they call Test day. These days are open for racers with valid license (any racing license SCCA, NASA, VARA, IMSA, FIA, etc) as well valid log book race cars. You must use race cars to do this event.
I heard SCCA is looking into doing something similar to HPDE, as they are loosing their young members.