Previously I had renamed <exercise> and <problem> as follows:
<rename element="inlineexercise" xml:lang="en-US">Problem</rename>
<rename element="problem" xml:lang="en-US">Drill</rename>
As per the updated naming convention I've changed the first one to
<rename element="exercise-inline" xml:lang="en-US">Problem</rename>
and it works fine. But how should I change the second one so that I get "Drill" instead of "Checkpoint"?
-- Bud