Boldhome Heroes

I understand how the new rule will work for Military Lore; you can either teach or learn at the Academy, or 'assist' in which case you roll against your Battle skill. But if you wish to study Homeland Lore, what do you roll against? And can traders and cultists 'assist' at the Trade academy/ temple rather than studying?

Finally, could this please be postponed until Fire season? Characters with 1/2 point in a skill will otherwise have no way to ever reach a full point. If most Heroes are away for three months, they will probably have received sufficient warning