When marking assignments on iPad it is handy to ink the student submission, but there is no ability to copy ink to reuse. I like to write a comment / feedback, then re-use it on other student's work. It would save time if I could copy the handwritten comment and paste into others.
Alternatively, allow the abiltiy to insert images into marking so I can paste an image of a tick sheet and use ink to add the ticks / highlight.