Github user pellmont commented on the issue: https://github.com/apache/zeppelin/pull/2624 Of course I did :-) But: - Code-Completion is by ctrl-. (as before ZEPPELIN-277). If it should be tab it has to be configured probably in livy/interpreter-settings.json - You need a fresh 0.5.0-SNAPSHOT version of livy (since 0.5.0 with LIVY-7 is not yet released). But code completion in LivyInterpreter won't produce any errors if the feature is not available in livy...
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