Keynote Edit Button - Your students may not be seeing the EDIT button when they begin the iPad Bootcamp / iPad Getting Started files in Keynote. So long as the file opens in Keynote, they should still be able to edit it (even without the EDIT option there). Some students are seeing a + button instead of the multimedia button, so if that is the case, pressing that will bring up the shapes and multimedia options that we used in learning the activity.
Airdrop - Airdrop is disabled for students to Airdrop to you or each other. However, you can Airdrop using Apple Classroom so long as you have it launched and running in the background. Click here for directions on how to do this.