Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/1688
Top right corner of each paragraph was pretty crowded in early days of
Zeppelin.
Run, Move up, Move down, Delete, Show title, Show codes, Hides output, and
so on.
Because it was too crowded, we decided to move most of them under dropdown
menu of the paragraph.
Shell we move this button into dropdown menu and assign keyboard short cut
instead?
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