While the Activity Builder is still an option in Notebook 18, when converting to an online activity, the settings that provide for feedback are lost. The only way to get more than two sorting options is to make your own activity, but then to lose the feedback for that activity makes the activity pointless for the kids to know how they did. I would love the ability to add additional categories to the sorting activity or be able to create my own activity to add to the Online Learning Suite.